mind

Cognitive Function Improvement

Cognitive Function Improvement refers to better performance on measures of thinking and mental processing. It can include changes in overall cognitive performance, scores on cognitive assessment scales, or reaction time, rather than a single feeling or symptom.

Cognitive Function Improvement is grouped under mind, offering a focused starting point for exploring this effect.

1Supplements
52Practices

These are research findings, not promises. Most options have little evidence, and results differ from person to person.

What may help

What studies found for each option, best evidence first.

53 options:14 some evidence7 mixed18 not enough evidence1 not tested in people8 personal stories only5 no benefit found

What studies foundSize of effect

MeditationpracticeSome evidence it helpsSize of effect: Small
Some human studies found a benefit. More research could change this.
22 of 23 studies found a benefit; 1 found none. Strongest study: a pooled analysis of several trials.
Open the Meditation page
QigongpracticeSome evidence it helpsSize of effect: Medium
Some human studies found a benefit. More research could change this.
17 of 18 studies found a benefit; 1 found none. Strongest study: a pooled analysis of several trials.
A 2023 meta-analysis of randomized trials found a small improvement in cognitive function among 2,365 people in its analysis. A 2025 meta-analysis of randomized trials also reported an improvement of 2.34 points.
Open the Qigong page
CyclingpracticeSome evidence it helpsSize of effect: Medium
Some human studies found a benefit. More research could change this.
All 13 studies with a clear result found a benefit. Strongest study: a pooled analysis of several trials.
Open the Cycling page
Mindfulness MeditationpracticeSome evidence it helpsSize of effect: Small
Some human studies found a benefit. More research could change this.
21 of 25 studies found a benefit; 4 found none. Strongest study: a pooled analysis of several trials.
Pooled analyses whose designs were not recorded reported improved cognitive outcomes, including subjective cognitive function among 1,364 people. Findings are mixed overall, with another pooled analysis of randomized and non-randomized human studies reporting benefits in specific cognitive domains but inconsistent results for general cognition.
Open the Mindfulness Meditation page
High-Intensity Interval Training (HIIT)practiceSome evidence it helpsSize of effect: Small
Some human studies found a benefit. More research could change this.
20 of 25 studies found a benefit; 5 found none. Strongest study: a pooled analysis of several trials.
A pooled analysis of randomized trials involving 981 people found a small improvement in information processing; another reported improvements in executive function and working memory. Results were not consistent: a review found no significant improvement in global cognitive function after low-volume supramaximal HIIT, although selected working-memory differences favored HIIT.
Open the High-Intensity Interval Training (HIIT) page
Gardening TherapypracticeSome evidence it helpsSize of effect: Medium
Some human studies found a benefit. More research could change this.
9 of 11 studies found a benefit; 2 found none. Strongest study: a pooled analysis of several trials.
A 2025 meta-analysis pooling randomized trials involving 960 people reported an effect on cognition. The studies involved varied groups, including people with dementia, depression, frailty, and mild cognitive impairment.
Open the Gardening Therapy page
AcupuncturepracticeSome evidence it helpsSize of effect: Medium
Some human studies found a benefit. More research could change this.
All 10 studies with a clear result found a benefit. Strongest study: a pooled analysis of several trials.
A pooled analysis of randomized trials found MoCA scores improved by 2.80 points among 262 people. The studies covered conditions including Alzheimer’s disease, dementia, mild cognitive impairment, Parkinson’s disease, and stroke.
Open the Acupuncture page
Red Light Therapy (Photobiomodulation)practiceSome evidence it helpsSize of effect: Medium
Some human studies found a benefit. More research could change this.
6 of 7 studies found a benefit; 1 found none. Strongest study: a pooled analysis of several trials.
A 2025 meta-analysis of randomized trials found improved global cognitive function among 820 people in the outcome analysis, with a moderate effect. Findings were not consistent across conditions: a review reported no significant difference in MMSE or ADAS-Cog scores in 53 people with mild-to-moderate Alzheimer's disease.
Open the Red Light Therapy (Photobiomodulation) page

FastingpracticeSome evidence it helpsSize of effect: Not known
Some human studies found a benefit. More research could change this.
4 of 5 studies found a benefit; 1 found none. Strongest study: a pooled analysis of several trials.
A pooled analysis whose designs were not recorded found an executive-function SMD of 0.56, assessed with the Stroop Test and Trail Making Test Part B. A 2024 review noted that only four studies reported a possible positive influence on cognitive function, while the other studies did not assess cognitive performance.
Open the Fasting page
SwimmingpracticeSome evidence it helpsSize of effect: Not known
Some human studies found a benefit. More research could change this.
6 of 7 studies found a benefit; 1 found none. Strongest study: a pooled analysis of several trials.
Open the Swimming page
BreathworkpracticeSome evidence it helpsSize of effect: Not known
Some human studies found a benefit. More research could change this.
5 of 6 studies found a benefit; 1 found none. Strongest study: a randomized controlled trial.
A 2025 randomized trial of 404 participants found greater increases in momentary mental clarity with both breathing-protocol groups than with meditation. A review also described cognitive benefits among several outcomes, but rated all of those outcomes as having very low certainty of evidence.
Open the Breathwork page
Acceptance and Commitment Therapy (ACT)practiceSome evidence it helpsSize of effect: Not known
Some human studies found a benefit. More research could change this.
All 3 studies with a clear result found a benefit. Strongest study: a randomized controlled trial.
Open the Acceptance and Commitment Therapy (ACT) page
Loving-Kindness Meditation (Metta)practiceSome evidence it helpsSize of effect: Not known
Some human studies found a benefit. More research could change this.
4 of 5 studies found a benefit; 1 found none. Strongest study: a randomized controlled trial.
In a randomized trial of 39 people, response times on a lexical decision task became faster after both meditation interventions, with the largest facilitation in the loving-kindness group. A separate trial of 42 people also found faster responses after the intervention under negative and neutral interference conditions.
Open the Loving-Kindness Meditation (Metta) page
Alternate Nostril Breathing (Nadi Shodhana)practiceSome evidence it helpsSize of effect: Not known
Some human studies found a benefit. More research could change this.
All 4 studies with a clear result found a benefit. Strongest study: a randomized controlled trial.
A 2019 randomized trial of 50 participants found that errors on a shape and size discrimination task fell by -33.1% after an Alternate Nostril Breathing session. A 2025 randomized trial also reported improved cognition in the test group.
Open the Alternate Nostril Breathing (Nadi Shodhana) page
Tai ChipracticeMixed resultsSize of effect: Small
Studies disagree: some found a benefit, others found none. Do not count on it.
34 of 38 studies found a benefit; 4 found none. Strongest study: a pooled analysis of several trials.
Open the Tai Chi page
CardiopracticeMixed resultsSize of effect: Very small
Studies disagree: some found a benefit, others found none. Do not count on it.
28 of 32 studies found a benefit; 4 found none. Strongest study: a pooled analysis of several trials.
Pooled analyses whose designs were not recorded found improvements in overall cognitive function assessed with the Montreal Cognitive Assessment and Mini-Mental State Examination. Results were not uniform: a pooled analysis of randomized trials found no statistically significant difference in performance on the Stroop Color and Word Test, with the confidence intervals crossing the null.
Open the Cardio page
DancepracticeMixed resultsSize of effect: Small
Studies disagree: some found a benefit, others found none. Do not count on it.
20 of 26 studies found a benefit; 6 found none. Strongest study: a pooled analysis of several trials.
A pooled analysis of randomized trials found a small improvement in cognition among 1,174 people in its cognition analysis. A separate pooled analysis whose study designs were not recorded found moderate improvement in global cognition, while another randomized-trial analysis of executive function had a confidence interval that included no effect.
Open the Dance page
YogapracticeMixed resultsSize of effect: Not known
Studies disagree: some found a benefit, others found none. Do not count on it.
16 of 17 studies found a benefit; 1 found none. Strongest study: a pooled analysis of several trials.
A 2026 pooled analysis whose designs were not recorded found improved ADAS-Cog scores among 663 people; lower scores on this inverted scale indicate improvement. A separate review reported improved fluid cognition with restorative yoga at week 12, but rated the cognitive evidence very low; findings vary across populations and measures.
Open the Yoga page
Hatha YogapracticeMixed resultsSize of effect: Not known
Studies disagree: some found a benefit, others found none. Do not count on it.
9 of 16 studies found a benefit; 7 found none. Strongest study: a randomized controlled trial.
In healthy adults, a review found that 2 of 3 studies suggested acute bouts of Hatha yoga improved executive function. A randomized trial of 200 people found cognitive-problem scores were 23% lower than in a wait-list group at 3-month follow-up, while a review of randomized trials involving 168 people found no significant improvements in any group.
Open the Hatha Yoga page
Strength TrainingpracticeMixed resultsSize of effect: Small
Studies disagree: some found a benefit, others found none. Do not count on it.
15 of 18 studies found a benefit; 3 found none. Strongest study: a pooled analysis of several trials.
Pooled analyses whose study designs were not recorded found improvements in global cognitive function, including among people with mild cognitive impairment. Findings are not consistent, however: a separate analysis found no significant effect of resistance exercise compared with usual care.
Open the Strength Training page
PilatespracticeMixed resultsSize of effect: Medium
Studies disagree: some found a benefit, others found none. Do not count on it.
7 of 8 studies found a benefit; 1 found none. Strongest study: a randomized controlled trial.
A review of randomized trials reported post-intervention improvements in the cognitive measure across studies involving 999 people. Another review reported cognitive improvements, but results across studies were not consistent.
Open the Pilates page
Brain Games / PuzzlespracticeNot enough evidence
Too few or too small studies to know if it works.
15 of 24 studies found a benefit; 9 found none. Strongest study: a pooled analysis of several trials.
Open the Brain Games / Puzzles page
PsychotherapypracticeNot enough evidence
Too few or too small studies to know if it works.
1 of 2 studies found a benefit; 1 found none. Strongest study: a pooled analysis of several trials.
A pooled analysis whose study designs were not recorded found statistically significant evidence that inhibition improved after treatment, based on Fisher's combined probability test (X²=42.98, global P-value <0.01).
Open the Psychotherapy page
Social DancingpracticeNot enough evidence
Too few or too small studies to know if it works.
5 of 10 studies found a benefit; 5 found none. Strongest study: a pooled analysis of several trials.
Open the Social Dancing page
Binaural BeatspracticeNot enough evidence
Too few or too small studies to know if it works.
4 of 9 studies found a benefit; 5 found none. Strongest study: a randomized controlled trial.
In a randomized trial of 64 healthy people, average hit rates were higher with Binaural Beats than with a pure tone when gamma beats used a low (340 Hz) carrier tone. Another trial found improved P300 classification accuracy with gamma beats but impaired performance with alpha beats, while a trial of 200 people found no improvement on a different task; results may depend on the task and beat frequency.
Open the Binaural Beats page
Focused Attention MeditationpracticeNot enough evidence
Too few or too small studies to know if it works.
12 of 15 studies found a benefit; 3 found none. Strongest study: a randomized controlled trial.
A 2013 trial found reduced response bias in a difficult task among two meditation groups, while a 2024 trial found that the focused attention group maintained Go/NoGo task performance as the control group’s performance declined. These findings concern specific task measures; a 2020 trial found no effect on motor-related processes.
Open the Focused Attention Meditation page
Jump Rope TrainingpracticeNot enough evidence
Too few or too small studies to know if it works.
All 5 studies with a clear result found a benefit. Strongest study: a randomized controlled trial.
In a randomized trial of 96 participants, the exercise group had faster Flanker task reaction times across overweight, obese and normal-weight groups; the reported effect was -35%. A separate randomized trial found improved executive control network efficiency in both HIIT and MICT groups after the intervention.
Open the Jump Rope Training page
Hot BathpracticeNot enough evidence
Too few or too small studies to know if it works.
2 of 5 studies found a benefit; 3 found none. Strongest study: a randomized controlled trial.
Open the Hot Bath page
Forest Bathing (Shinrin-yoku)practiceNot enough evidence
Too few or too small studies to know if it works.
All 4 studies with a clear result found a benefit. Strongest study: a randomized controlled trial.
A review reported cognitive decline improvements in two articles. In a pooled analysis of randomized trials involving 112 people, performance on an attention test improved slightly from before to midway through a nature-reserve walk, while it declined in an urban setting.
Open the Forest Bathing (Shinrin-yoku) page
Transcendental MeditationpracticeNot enough evidence
Too few or too small studies to know if it works.
All 4 studies with a clear result found a benefit. Strongest study: a randomized controlled trial.
An RCT involving 17 people found greater improvement over time in WebNeuro response speed scores with Transcendental Meditation than with control. An RCT involving 10 people also reported higher mental-clarity results among participants practising it.
Open the Transcendental Meditation page
Wim Hof Method BreathingpracticeNot enough evidence
Too few or too small studies to know if it works.
The one study found a benefit. Strongest study: a randomized controlled trial.
Open the Wim Hof Method Breathing page
Laughter Yoga / TherapypracticeNot enough evidence
Too few or too small studies to know if it works.
All 2 studies with a clear result found a benefit. Strongest study: a randomized controlled trial.
In a 2019 randomized trial of 56 people with cancer, cognitive functioning scores rose by 5.8 points from baseline to Week 7 in one group and fell by 5.3 points in the other; the between-group difference was 11.1 points. A 2024 review also described better cognitive function for a short period after the intervention.
Open the Laughter Yoga / Therapy page
Expressive WritingpracticeNot enough evidence
Too few or too small studies to know if it works.
2 of 4 studies found a benefit; 2 found none. Strongest study: a randomized controlled trial.
A randomized trial of 20 people found shorter RTs in the experimental group than in the control group, with large effect sizes. A meta-analysis pooling randomized and non-randomized human studies found that the effect on test performance was initially significant but became nonsignificant after removing an extreme outlier; the findings disagree.
Open the Expressive Writing page
Yoga NidrapracticeNot enough evidence
Too few or too small studies to know if it works.
All 2 studies with a clear result found a benefit. Strongest study: a study that followed people over time.
Open the Yoga Nidra page
Latin Dance FitnesspracticeNot enough evidence
Too few or too small studies to know if it works.
The one study found a benefit. Strongest study: a randomized controlled trial.
In a 2020 trial of 53 healthy women, a higher proportion of those in the intervention group improved by more than 0.5 SD (6.3 seconds) on the DKEFS color-word interference inhibition score than in the control group; the reported effect was 26%.
Open the Latin Dance Fitness page
Hot YogapracticeNot enough evidence
Too few or too small studies to know if it works.
1 of 3 studies found a benefit; 2 found none. Strongest study: a small pilot study.
Open the Hot Yoga page
Box BreathingpracticeNot enough evidence
Too few or too small studies to know if it works.
1 of 2 studies found a benefit; 1 found none. Strongest study: a small pilot study.
A pilot study with 47 participants found fewer inhibition errors on an attention test after box breathing, with the change more pronounced among people with high trait anxiety. However, a separate trial with 66 participants found no treatment effects or interactions for the cognitive performance measures, so findings disagree.
Open the Box Breathing page
Finnish SaunapracticeNot enough evidence
Too few or too small studies to know if it works.
The one study found a benefit. Strongest study: a non-randomized trial.
In a quasi-experimental study of 20 healthy people, the P300 area decreased in the sauna group but not the control group. This change in a measured response does not by itself show improved everyday cognitive function.
Open the Finnish Sauna page
Brisk WalkingpracticeNot enough evidence
Too few or too small studies to know if it works.
The one study found a benefit. Strongest study: a one-time survey study.
A 2017 cross-sectional study of 84 healthy people found shorter reaction times in the TG group than in the BG and CG groups during the executive condition; the BG group also had shorter reaction times than the CG group.
Open the Brisk Walking page
ChagasupplementNot tested in people
Only tested in animals, cells or theory. Results like these often do not carry over to people.
The one study found a benefit. Strongest study: an animal study.
Open the Chaga page
Anusara YogapracticeOnly personal stories
Only people's own stories online. No study has tested it.
Based on one study.
Open the Anusara Yoga page
Bedtime Wind-Down RitualpracticeOnly personal stories
Only people's own stories online. No study has tested it.
Based on one study.
Open the Bedtime Wind-Down Ritual page
Coherent BreathingpracticeOnly personal stories
Only people's own stories online. No study has tested it.
Based on one study.
Open the Coherent Breathing page
Gratitude JournalpracticeOnly personal stories
Only people's own stories online. No study has tested it.
Based on one study.
Open the Gratitude Journal page
Grounding / EarthingpracticeOnly personal stories
Only people's own stories online. No study has tested it.
Based on one study.
Open the Grounding / Earthing page
MassagepracticeOnly personal stories
Only people's own stories online. No study has tested it.
Based on one study.
Open the Massage page
Vinyasa YogapracticeOnly personal stories
Only people's own stories online. No study has tested it.
Based on one study.
Open the Vinyasa Yoga page
Yin YogapracticeOnly personal stories
Only people's own stories online. No study has tested it.
Based on one study.
Open the Yin Yoga page
Foam RollingpracticeNo benefit found
Studies looked for a benefit and did not find one.
0 of 2 studies found a benefit; 2 found none. Strongest study: a randomized controlled trial.
No human findings are reported to establish that Foam Rolling improves cognitive function.
Open the Foam Rolling page
Ice Bath / Cold PlungepracticeNo benefit found
Studies looked for a benefit and did not find one.
0 of 4 studies found a benefit; 4 found none.
A 2021 systematic review of randomized and non-randomized human studies found no effect on reasoning, so studies did not support this cognitive benefit.
Open the Ice Bath / Cold Plunge page
CalisthenicspracticeNo benefit found
Studies looked for a benefit and did not find one.
0 of 2 studies found a benefit; 2 found none.
Human evidence has not established that this practice improves cognitive function.
Open the Calisthenics page
Tabata TrainingpracticeNo benefit found
Studies looked for a benefit and did not find one.
The one study found no benefit.
The proposed cognitive-function benefit is theoretical; no human study findings establish it.
Open the Tabata Training page
Mobility TrainingpracticeNo benefit found
Studies looked for a benefit and did not find one.
1 of 2 studies found a benefit; 1 found none.
Studies did not support a clear improvement in cognitive function. A review of randomized trials described the benefit of dual-task training as inconclusive because it was provided by one study only.
Open the Mobility Training page

Show all 53

Comparing practices

QigongSome evidence it helpsSize of effect: Medium16 trials
CyclingSome evidence it helpsSize of effect: Medium12 trials
AcupunctureSome evidence it helpsSize of effect: Medium9 trials

The expert view shows every study, dose protocol and source.

What may help

Linked to improving it53 listed

AllSupplementsPractices

Start here

Most likely to help, from the evidence we have

PracticesCyclingCertaintyMediumSourceMeta-analysisModerate effect14 other sources
A pooled analysis of randomized trials found lower delirium (OR = 0.50, 95% CI [0.33–0.77], P = .002) among 1,385 people in its outcome analysis. Separately, a pooled analysis whose study designs were not recorded found an effect of an acute bout of cycling exercise on reaction time (Hedges' g = 0.61; 95% CI [0.41, 0.82]) in an analysis of 494 people.
How big is the effect
Moderate effectA clear difference on average.
Who was studied
Healthy people and patients
Alzheimers Disease
Autism Spectrum
Copd
Covid 19
Heart Disease
Parkinsons Disease
+2 more
Study result
lowers ... delirium (OR = 0.50, 95% CI [0.33–0.77], P = .002)
Open Cycling
→
PracticesMeditationCertaintyMediumSourceMeta-analysisSmall effect24 other sources
A pooled analysis of randomized trials found improved cognitive function, while another found a small improvement in attention network function (SMD = 0.44; 95% CI [0.01, 0.87]; p = 0.04; I² = 88%). A review of randomized and non-randomized human studies described benefits in some cognitive domains but inconsistent results for general cognitive function.
How big is the effect
Small effectA small but noticeable difference on average.
Who was studied
Healthy people and patients
ADHD
Alzheimers Disease
Cancer
Eating Disorder
Mild Cognitive Impairment
Obesity
+1 more
Study result
significantly improved ... cognitive function (standard mean difference [SMD] = 0.62, 95% CI = 0.23 to 1.02)
Open Meditation
→
PracticesQigongCertaintyMediumSourceMeta-analysisModerate effect19 other sources
A 2023 meta-analysis of randomized trials found a small improvement in cognitive function among 2,365 people in its analysis (Hedges' g = 0.29, 95% CI = 0.17 to 0.42). A 2025 meta-analysis of randomized trials also reported an improvement of 2.34 points.
How big is the effect
Moderate effectA clear difference on average.
Who was studied
Healthy people and patients
Atrial Fibrillation
Breast Cancer
Cancer
Copd
Dementia
Depression
+6 more
Study result
TCQ had significant effects on cognitive function (Hedges' g = 0.29, 95% CI = 0.17 to 0.42)
Open Qigong
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PracticesCardioCertaintyMediumSourceMeta-analysisTrivial effectconflicting findings33 other sources
Pooled analyses whose designs were not recorded found improvements in overall cognitive function assessed with the Montreal Cognitive Assessment and Mini-Mental State Examination (SMD = 0.49, 95% CI: 0.23–0.75, P < 0.001). Results were not uniform: a pooled analysis of randomized trials found no statistically significant difference in performance on the Stroop Color and Word Test, with the confidence intervals crossing the null.
How big is the effect
Trivial effectReal in studies, but too small for most people to notice.
Who was studied
Healthy people and patients
Depression
Major Depressive Disorder
Mild Cognitive Impairment
Schizophrenia
Study result
Aerobic exercise significantly improved overall cognitive function (SMD = 0.49, 95% CI: 0.23–0.75, P < 0.001), assessed with the Montreal Cognitive Assessment (MoCA) and Mini-Mental State Examination (MMSE)
Open Cardio
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PracticesDanceCertaintyMediumSourceMeta-analysisSmall effectconflicting findings26 other sources
A pooled analysis of randomized trials found a small improvement in cognition among 1,174 people in its cognition analysis (g = 0.27; 95% confidence interval, 0.05-0.50; P = 0.022). A separate pooled analysis whose study designs were not recorded found moderate improvement in global cognition, while another randomized-trial analysis of executive function had a confidence interval that included no effect.
How big is the effect
Small effectA small but noticeable difference on average.
Who was studied
Healthy people and patients
Alzheimers Disease
Dementia
Huntingtons Disease
Mild Cognitive Impairment
Multiple Sclerosis
Obesity
+2 more
Study result
The overall effect of dance interventions on cognition was significant, yet small (g = 0.27; 95% confidence interval, 0.05-0.50; P = 0.022)
Open Dance
→
PracticesTai ChiCertaintyMediumSourceMeta-analysisSmall effectconflicting findings39 other sources
Pooled analyses of randomized trials found improved neuropsychological performance (SMD = 0.66, 95% CI: 0.42-0.89) and cognitive function (SMD = 0.44) in 2026. Findings differ by assessment: a 2023 systematic review reported no statistical differences on FACT-COG and WAIS-III measures.
How big is the effect
Small effectA small but noticeable difference on average.
Who was studied
Healthy people and patients
Alzheimers Disease
Breast Cancer
Chronic Fatigue Syndrome
Dementia
Depression
Diabetes
+5 more
Study result
TCQ significantly improved overall neuropsychological performance (SMD = 0.66, 95% CI: 0.42-0.89)
Open Tai Chi
→
PracticesYogaCertaintyMediumSourceMeta-analysisconflicting findings18 other sources
A 2026 pooled analysis whose designs were not recorded found improved ADAS-Cog scores among 663 people; lower scores on this inverted scale indicate improvement (MD = −2.09, 95% CI: −2.94 to −1.25). A separate review reported improved fluid cognition with restorative yoga at week 12, but rated the cognitive evidence very low; findings vary across populations and measures.
Who was studied
Healthy people and patients
Addiction
Alzheimers Disease
Cancer
Chemotherapy Side Effects
Copd
Diabetes Type2
+6 more
Study result
Mind–body exercise significantly improved ADAS-Cog (MD = −2.09, 95% CI: −2.94 to −1.25, P < .00001); ADAS-Cog is an inverted scale (lower = better), so the decrease indicates improvement
Open Yoga
→

Medium probability(14)

PracticesAcupunctureCertaintyMediumSourceRCTModerate effect10 other sources
A pooled analysis of randomized trials found MoCA scores improved by 2.80 points among 262 people. The studies covered conditions including Alzheimer’s disease, dementia, mild cognitive impairment, Parkinson’s disease, and stroke.
How big is the effect
Moderate effectA clear difference on average.
Who was studied
People with a condition
Alzheimers Disease
Cerebrovascular Disease
Dementia
Mild Cognitive Impairment
Parkinsons Disease
Stroke
+1 more
Study result
acupuncture_usual (MD = −1.67, 95% CrI: −1.86 ~ −1.48) were more efficacious in lowering the UPDRS I score than usual treatment
Open Acupuncture
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PracticesGardening TherapyCertaintyMediumSourceRCTModerate effect11 other sources
A 2025 meta-analysis pooling randomized trials involving 960 people reported an effect on cognition (g = 0.816; 95 % CI: 0.302-1.331). The studies involved varied groups, including people with dementia, depression, frailty, and mild cognitive impairment.
How big is the effect
Moderate effectA clear difference on average.
Who was studied
Healthy people and patients
Dementia
Depression
Elderly
Frailty
Intellectual Disability
Mild Cognitive Impairment
+2 more
Study result
cognition (g = 0.816; 95 % CI: 0.302-1.331)
Open Gardening Therapy
→
PracticesHigh-Intensity Interval Training (HIIT)CertaintyMediumSourceRCTSmall effect25 other sources
A pooled analysis of randomized trials involving 981 people found a small improvement in information processing; another reported improvements in executive function and working memory. Results were not consistent: a review found no significant improvement in global cognitive function after low-volume supramaximal HIIT, although selected working-memory differences favored HIIT.
How big is the effect
Small effectA small but noticeable difference on average.
Who was studied
Healthy people and patients
Anxiety Disorder
Asthma
Breast Cancer
Cancer
Copd
Coronary Artery Disease
+14 more
Study result
HIIT significantly enhanced information processing (SMD = 0.33, 95% CI: 0.15–0.52, P = 0.0005)
Open High-Intensity Interval Training (HIIT)
→
PracticesMindfulness MeditationCertaintyMediumSourceRCTSmall effect26 other sources
Pooled analyses whose designs were not recorded reported improved cognitive outcomes, including subjective cognitive function among 1,364 people. Findings are mixed overall, with another pooled analysis of randomized and non-randomized human studies reporting benefits in specific cognitive domains but inconsistent results for general cognition.
How big is the effect
Small effectA small but noticeable difference on average.
Who was studied
Healthy people and patients
Asthma
Breast Cancer
Cancer
Depression
Hiv Aids
Parkinsons Disease
+1 more
Study result
MC (SMD: -5.07, 95%CI: -7.29 to -2.84) demonstrated significantly greater effectiveness compared to the control group/condition.
Open Mindfulness Meditation
→
PracticesRed Light Therapy (Photobiomodulation)CertaintyMediumSourceRCTModerate effect8 other sources
A 2025 meta-analysis of randomized trials found improved global cognitive function among 820 people in the outcome analysis, with a moderate effect. Findings were not consistent across conditions: a review reported no significant difference in MMSE or ADAS-Cog scores in 53 people with mild-to-moderate Alzheimer's disease.
How big is the effect
Moderate effectA clear difference on average.
Who was studied
Healthy people and patients
Age Related Macular Degeneration
Alopecia Androgenetic
Als
Alzheimers Disease
Anxiety Disorder
Carpal Tunnel
+20 more
Study result
PBM treatment showed significant benefits for subjects in terms of global cognitive function (SMD = 0.66, 95% CI: 0.23 to 1.08, P = 0.003)
Open Red Light Therapy (Photobiomodulation)
→
PracticesFastingCertaintyMediumSourceRCT6 other sources
A pooled analysis whose designs were not recorded found an executive-function SMD of 0.56 (95% CI: 0.38–0.74), assessed with the Stroop Test and Trail Making Test Part B. A 2024 review noted that only four studies reported a possible positive influence on cognitive function, while the other studies did not assess cognitive performance.
Who was studied
Healthy people and patients
Alzheimers Disease
Metabolic Syndrome
Obesity
Schizophrenia
Study result
Executive function showed an SMD of 0.56 (95% CI: 0.38–0.74; I² = 68%), evaluated with Stroop Test and Trail Making Test Part B
Open Fasting
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PracticesSwimmingCertaintyMediumSourceRCT8 other sources
A pooled analysis whose designs were not recorded found aquatic exercise improved cognitive scores compared with no intervention (MD = 22.16, 95% CI = (8.36, 35.97)) and compared with traditional aerobic exercise (MD = 43.47, 95% CI = (17.05, 69.89)). Findings on swimming specifically are less consistent: one review found a statistically significant relationship with improved cognition in six studies (35%).
Who was studied
Healthy people and patients
Alzheimers Disease
Dementia
Mild Cognitive Impairment
Study result
Aquatic exercise [MD = 22.16, 95% CI = (8.36, 35.97)] was more effective than that with no intervention. Compared to traditional aerobic exercise, aquatic exercise [MD = 43.47, 95% CI = (17.05, 69.89)]... were more effective.
Open Swimming
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PracticesBreathworkCertaintyMediumSourceRCT7 other sources
A 2025 randomized trial of 404 participants found greater increases in momentary mental clarity with both breathing-protocol groups than with meditation. A review also described cognitive benefits among several outcomes, but rated all of those outcomes as having very low certainty of evidence.
Who was studied
Healthy people and patients
Study result
Beneficial effects (all with very low certainty of evidence) have been reported for the following outcomes: dyspnoea, physical capacity, pulmonary function, psychological well-being, quality of life, functional capacity, fatigue, muscle pain, chest pain, cognitive function, and return to normal dail
Open Breathwork
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PracticesAcceptance and Commitment Therapy (ACT)CertaintyMediumSourceRCT4 other sources
A review found improvements in some cognitive domains following ACT interventions among 904 people in its cognitive-function analysis, with the changes described as indirect. In a trial of 72 people with Lupus (SLE), executive-function scores were reported as RR 28.29 ± 2.38% with ACT versus 21.34 ± 1.62% in the control group; higher scores on this scale indicate greater impairment.
Who was studied
People with a condition
Lupus
Study result
Of the 12 articles, 10 studies showed improvements in certain domains of cognitive function due indirectly to ACT intervention.
Open Acceptance and Commitment Therapy (ACT)
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PracticesStrength TrainingCertaintyMediumSourceRCTSmall effectconflicting findings18 other sources
Pooled analyses whose study designs were not recorded found improvements in global cognitive function, including among people with mild cognitive impairment. Findings are not consistent, however: a separate analysis found no significant effect of resistance exercise compared with usual care (SMD 0.46, 95% CI: –0.57–1.48).
How big is the effect
Small effectA small but noticeable difference on average.
Who was studied
People with a condition
Mild Cognitive Impairment
Study result
Resistance training demonstrated the greatest improvement in global cognitive function (SMD = 0.55, 95% CI: 0.21–0.89, P = 0.002, SUCRA = 83.3%), assessed via MoCA and MMSE
Open Strength Training
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PracticesPilatesCertaintyMediumSourceRCTModerate effectconflicting findings8 other sources
A review of randomized trials reported post-intervention improvements in the cognitive measure across studies involving 999 people. Another review reported cognitive improvements, but results across studies were not consistent.
How big is the effect
Moderate effectA clear difference on average.
Who was studied
Healthy people and patients
Menopause
Multiple Sclerosis
Parkinsons Disease
Study result
All of them obtained significant post-intervention improvements in this parameter.
Open Pilates
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PracticesHatha YogaCertaintyMediumSourceClinical17 other sources
In healthy adults, a review found that 2 of 3 studies suggested acute bouts of Hatha yoga improved executive function. A randomized trial of 200 people found cognitive-problem scores were 23% lower than in a wait-list group at 3-month follow-up, while a review of randomized trials involving 168 people found no significant improvements in any group.
Who was studied
Healthy people and patients
Breast Cancer
Diabetes Type2
Elderly
Multiple Sclerosis
Parkinsons Disease
Study result
In healthy adults, 2 of 3 studies suggested that acute bouts of Hatha yoga improved EF
Open Hatha Yoga
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PracticesLoving-Kindness Meditation (Metta)CertaintyMediumSourceClinical6 other sources
In a randomized trial of 39 people, response times on a lexical decision task became faster after both meditation interventions, with the largest facilitation in the loving-kindness group. A separate trial of 42 people also found faster responses after the intervention under negative and neutral interference conditions.
Who was studied
Healthy people and patients
Depression
Study result
After both meditation interventions, response times in the lexical decision task accelerated significantly, with the largest facilitation occurring in the loving-kindness group.
Open Loving-Kindness Meditation (Metta)
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PracticesAlternate Nostril Breathing (Nadi Shodhana)CertaintyMediumSourceClinical5 other sources
A 2019 randomized trial of 50 participants found that errors on a shape and size discrimination task fell by -33.1% after an Alternate Nostril Breathing session. A 2025 randomized trial also reported improved cognition in the test group.
Who was studied
Healthy people and patients
Parkinsons Disease
Study result
Significant improvement in cognition... was also observed in the test group.
Open Alternate Nostril Breathing (Nadi Shodhana)
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Low probability(29)

PracticesBrain Games / PuzzlesCertaintyLowSourceRCTTrivial effect25 other sources
A pooled analysis of randomized trials involving 909 people in its overall cognitive-function analysis found no significant effect (SMD 0.08 [-0.24, 0.41]). Other research reported improvements on specific training tasks, so results for task performance do not establish an overall cognitive benefit.
How big is the effect
Trivial effectReal in studies, but too small for most people to notice.
Who was studied
Healthy people and patients
Alzheimers Disease
Autism Spectrum
Dementia
Kidney Failure
Mild Cognitive Impairment
Multiple Sclerosis
Study result
brain training games have reported statistically significant (*P* < 0.05) findings from the baseline
Open Brain Games / Puzzles
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PracticesPsychotherapyCertaintyLowSourceRCT3 other sources
A pooled analysis whose study designs were not recorded found statistically significant evidence that inhibition improved after treatment, based on Fisher's combined probability test (X²=42.98, global P-value <0.01).
Who was studied
People with a condition
Study result
Fisher's combined probability test (n=12) yielded X²=42.98, corresponding to a global P-value <0.01. This result indicates statistically significant evidence that inhibition improves after the treatment.
Open Psychotherapy
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PracticesSocial DancingCertaintyLowSourceRCTSmall effectconflicting findings11 other sources
A meta-analysis of randomized and non-randomized human studies found a small improvement in MMSE scores (SMD 0.37 [0.27, 0.47]); another pooled analysis found a 0.94-point improvement on the Montreal Cognitive Assessment (95%CI: 0.01, 1.87). Findings are not consistent: a meta-analysis of randomized trials found that Chinese square dance did not significantly improve cognitive scores compared with control.
How big is the effect
Small effectA small but noticeable difference on average.
Who was studied
Healthy people and patients
Dementia
Elderly
Mild Cognitive Impairment
Sarcopenia
Study result
MMSE scores (SMD = 0.37, 95% CI: 0.27 to 0.47, p < 0.001) with low heterogeneity (I² = 0%)
Open Social Dancing
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PracticesBinaural BeatsCertaintyLowSourceClinical10 other sources
In a randomized trial of 64 healthy people, average hit rates were higher with Binaural Beats than with a pure tone when gamma beats used a low (340 Hz) carrier tone (p = 0.002). Another trial found improved P300 classification accuracy with gamma beats but impaired performance with alpha beats, while a trial of 200 people found no improvement on a different task; results may depend on the task and beat frequency.
Who was studied
Healthy people
Study result
average percent hits were greater during BBs compared to pure tone among people who received gamma beats with the low (340 Hz) carrier tone (p = 0.002)
Open Binaural Beats
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PracticesFocused Attention MeditationCertaintyLowSourceClinical16 other sources
A 2013 trial found reduced response bias in a difficult task among two meditation groups, while a 2024 trial found that the focused attention group maintained Go/NoGo task performance as the control group’s performance declined. These findings concern specific task measures; a 2020 trial found no effect on motor-related processes.
Who was studied
Healthy people and patients
Traumatic Brain Injury
Study result
In the difficult condition response bias was significantly reduced in the FM and PR groups (FM: t(23)=5.6, P<.001)
Open Focused Attention Meditation
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PracticesJump Rope TrainingCertaintyLowSourceClinical6 other sources
In a randomized trial of 96 participants, the exercise group had faster Flanker task reaction times across overweight, obese and normal-weight groups; the reported effect was -35%. A separate randomized trial found improved executive control network efficiency in both HIIT and MICT groups after the intervention.
Who was studied
Healthy people
Obesity
Study result
In the Flanker task, the exercise group exhibited faster reaction times across all weight categories: overweight (p < 0.0001), obese (p < 0.0001), and normal-weight groups (p = 0.004).
Open Jump Rope Training
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PracticesHot BathCertaintyLowSourceClinical5 other sources
A randomized trial in 20 participants found attentional performance improved by +10% ± 5% and +9% ± 7% in the two groups, alongside lower mental effort. Findings differ by test: a separate trial found that performance improved over time, but not more in one group than another.
Who was studied
Healthy people
Study result
Both improved attentional performance (CTRL_HA:+10% ± 5%, BFR_HA:+9% ± 7%; p < 0.001) with lower mental effort
Open Hot Bath
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PracticesForest Bathing (Shinrin-yoku)CertaintyLowSourceClinical4 other sources
A review reported cognitive decline improvements in two articles. In a pooled analysis of randomized trials involving 112 people, performance on an attention test improved slightly from before to midway through a nature-reserve walk, while it declined in an urban setting.
Who was studied
Healthy people and patients
Alzheimers Disease
Copd
Depression
Heart Failure
Hypertension
Study result
Two articles reported an improvement in cognitive decline after an intervention in nature.
Open Forest Bathing (Shinrin-yoku)
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PracticesTranscendental MeditationCertaintyLowSourceClinical5 other sources
An RCT involving 17 people found greater improvement over time in WebNeuro response speed scores with Transcendental Meditation than with control. An RCT involving 10 people also reported higher mental-clarity results among participants practising it.
Who was studied
Healthy people and patients
Study result
Improvements in WebNeuro response speed scores over time were significantly (p = 0.03) greater in the TM group relative to control.
Open Transcendental Meditation
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PracticesWim Hof Method BreathingCertaintyLowSourceClinical2 other sources
In a 2025 randomized trial of 404 healthy participants, a daily Wim Hof Method protocol led to greater momentary self-reported mental clarity improvement than meditation: MD 1 points [0.7, 1.3].
Who was studied
Healthy people
Study result
WHM conditions showed greater momentary improvements in self-reported... mental clarity... following daily protocol compared with meditation. WHM (vs MC): Estimate 1.0 (0.15) [0.70, 1.3]
Open Wim Hof Method Breathing
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PracticesLaughter Yoga / TherapyCertaintyLowSourceClinical2 other sources
In a 2019 randomized trial of 56 people with cancer, cognitive functioning scores rose by 5.8 points from baseline to Week 7 in one group and fell by 5.3 points in the other; the between-group difference was 11.1 points [3.2, 19]. A 2024 review also described better cognitive function for a short period after the intervention.
Who was studied
People with a condition
Cancer
Study result
Cognitive functioning score improved by 5.8 points from baseline to Week 7 in Group A, but worsened by 5.3 points in Group B. This resulted in a significant between-group difference that favored Group A over Group B (95% CI: 3.2 to 19.0 points; P = 0.006).
Open Laughter Yoga / Therapy
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PracticesExpressive WritingCertaintyLowSourceClinicalconflicting findings5 other sources
A randomized trial of 20 people found shorter RTs in the experimental group than in the control group, with large effect sizes. A meta-analysis pooling randomized and non-randomized human studies found that the effect on test performance was initially significant (r = .09, p = .02) but became nonsignificant after removing an extreme outlier (r = .06, p = .06); the findings disagree.
Who was studied
Healthy people and patients
Anxiety Disorder
Study result
the experimental group’s RTs were significantly shorter than the control group’s. The effect sizes were large.
Open Expressive Writing
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PracticesYoga NidraCertaintyLowSourceClinical3 other sources
In a 2023 cohort of 41 healthy participants, accuracy increased in VOLT (MD 0.125 proportion correct [0.08, 0.17]). A 2018 quasi-experimental study of 36 participants also reported improvements in clarity of thoughts and control over anger, among other qualities.
Who was studied
Healthy people
Study result
Accuracy increased in VOLT (95% CI: 0.08, 0.17; p = 0.002, d = 0.79)
Open Yoga Nidra
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PracticesLatin Dance FitnessCertaintyLowSourceClinicalLarge effect2 other sources
In a 2020 trial of 53 healthy women, a higher proportion of those in the intervention group improved by more than 0.5 SD (6.3 seconds) on the DKEFS color-word interference inhibition score than in the control group; the reported effect was 26%.
How big is the effect
Large effectA big difference on average. Check how strong the evidence is.
Who was studied
Healthy people
Study result
the percentage of women with more than a 0.5 SD (6.3 seconds) improvement in the DKEFS color-word interference inhibition score was significantly higher for the intervention group than for the control group (P = .04)
Open Latin Dance Fitness
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PracticesHot YogaCertaintyLowSourceClinical4 other sources
A pilot study involving 28 people reported improved cognitive/physical functioning (SMD 1.34). In contrast, a pooled analysis of randomized and non-randomized human studies involving 32 people in its analysis found no changes in inhibitory control, cognitive flexibility, or working memory compared with a wait-list control group.
Who was studied
Healthy people and patients
ADHD
Depression
Obesity
Study result
cognitive/physical functioning (p d GLMM = 1.34)
Open Hot Yoga
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PracticesBox BreathingCertaintyLowSourceClinical3 other sources
A pilot study with 47 participants found fewer inhibition errors on an attention test after box breathing, with the change more pronounced among people with high trait anxiety. However, a separate trial with 66 participants found no treatment effects or interactions for the cognitive performance measures, so findings disagree.
Who was studied
Healthy people and patients
Study result
Interestingly, the students made fewer inhibition errors in the attention test after the box breathing condition. This effect was more pronounced for individuals with high levels of trait anxiety.
Open Box Breathing
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PracticesFinnish SaunaCertaintyLowSourceClinical1 other source
In a quasi-experimental study of 20 healthy people, the P300 area decreased in the sauna group but not the control group. This change in a measured response does not by itself show improved everyday cognitive function.
Who was studied
Healthy people
Study result
P300 area significantly decreased in the sauna group (F (1, 18) = 12.35, p < 0.01) but not in the control group (F (1, 18) = 0.05, n.s.)
Open Finnish Sauna
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PracticesBrisk WalkingCertaintyLowSourceClinical2 other sources
A 2017 cross-sectional study of 84 healthy people found shorter reaction times in the TG group than in the BG and CG groups during the executive condition; the BG group also had shorter reaction times than the CG group.
Who was studied
Healthy people
Study result
In the executive condition, the TG had a shorter RT than the BG (p < 0.001) and the CG (p < 0.001), and the BG had a shorter RT than the CG (p < 0.001).
Open Brisk Walking
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PracticesAnusara YogaCertaintyLowSourceAnecdotal1 other source
This effect was mentioned in 3 of 140 Reddit reports discussing it.
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PracticesBedtime Wind-Down RitualCertaintyLowSourceAnecdotal1 other source
This effect was mentioned in 2 of 17 Hacker News reports discussing it.
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PracticesCoherent BreathingCertaintyLowSourceAnecdotal1 other source
This effect was mentioned in 4 of 256 community reports discussing it (Reddit 2, YouTube 2).
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PracticesGratitude JournalCertaintyLowSourceAnecdotal1 other source
This effect was mentioned in 5 of 196 Reddit reports discussing it.
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PracticesGrounding / EarthingCertaintyLowSourceAnecdotal1 other source
This effect was mentioned in 6 of 225 community reports discussing it (Reddit 3, YouTube 3).
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PracticesMassageCertaintyLowSourceAnecdotal1 other source
This effect was mentioned in 2 of 240 Reddit reports discussing it.
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PracticesVinyasa YogaCertaintyLowSourceAnecdotal1 other source
This effect was mentioned in 4 of 312 Reddit reports discussing it.
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PracticesYin YogaCertaintyLowSourceAnecdotal1 other source
This effect was mentioned in 3 of 71 Reddit reports discussing it.
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PracticesIce Bath / Cold PlungeCertaintyLowSourceTheoretical5 other sources
A 2021 systematic review of randomized and non-randomized human studies found no effect on reasoning, so studies did not support this cognitive benefit.
Who was studied
Healthy people
Open Ice Bath / Cold Plunge
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PracticesCalisthenicsCertaintyLowSourceTheoretical3 other sources
Human evidence has not established that this practice improves cognitive function.
Who was studied
Healthy people
Open Calisthenics
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PracticesTabata TrainingCertaintyLowSourceTheoretical2 other sources
The proposed cognitive-function benefit is theoretical; no human study findings establish it.
Who was studied
Healthy people
Open Tabata Training
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Very low probability(3)

PracticesFoam RollingCertaintyVery lowSourceClinical2 other sources
No human findings are reported to establish that Foam Rolling improves cognitive function.
Who was studied
Healthy people
Open Foam Rolling
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SupplementsChagaCertaintyVery lowSourceAnimal research3 other sources
Marked amelioration of cognitive impairment (no numeric values reported in abstract)
Dose & course
not-reported
Who it applies to
Adults
Animal
Open Chaga
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PracticesMobility TrainingCertaintyVery lowSourceTheoretical2 other sources
Studies did not support a clear improvement in cognitive function. A review of randomized trials described the benefit of dual-task training as inconclusive because it was provided by one study only.
Who was studied
People with a condition
Stroke
Open Mobility Training
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Practices compared

Practices with at least one trial of their own for this goal. Ranked by how sure the evidence is, then effect size.Top 10 of 37

Practice	How sure	Effect size	Own trials	What worked in trials
Qigong	CertaintyMediumSourceMeta-analysis	Moderate effect	16 trials or pooled analyses	30–45 min · 2–4.5×/week · 11–14 weeks
Cycling	CertaintyMediumSourceMeta-analysis	Moderate effect	12 trials or pooled analyses	7–20 min · 2–3×/week · 4–7 weeks
Acupuncture	CertaintyMediumSourceRCT	Moderate effect	9 trials or pooled analyses	3–5.2×/week · 5–9 weeks
Gardening Therapy	CertaintyMediumSourceRCT	Moderate effect	8 trials or pooled analyses	2×/week
Pilates	CertaintyMediumSourceRCT	Moderate effect	7 trials or pooled analyses	45 min · 2–2.2×/week · 6–9 weeks
Red Light Therapy (Photobiomodulation)	CertaintyMediumSourceRCT	Moderate effect	6 trials or pooled analyses
Tai Chi	CertaintyMediumSourceMeta-analysis	Small effect	30 trials or pooled analyses	20–60 min · 1–3×/week · 8–24 weeks
Mindfulness Meditation	CertaintyMediumSourceRCT	Small effect	19 trials or pooled analyses	90–150 min · 1×/week · 4–8 weeks
Meditation	CertaintyMediumSourceMeta-analysis	Small effect	18 trials or pooled analyses	7–14 min · 1–5.5×/week · 3–5 weeks
High-Intensity Interval Training (HIIT)	CertaintyMediumSourceRCT	Small effect	17 trials or pooled analyses	15–27 min · 2.7–3×/week · 3–7 weeks

What worked in trials: From the smallest to the typical amount in the trials that found this benefit. Not the most anyone did, not a target and not a limit.

How to read the evidence

Evidence tier — overall strength of the evidence for the whole compound

StrongWell established — backed by strong, consistent human research.
ModerateSome genuine support, but mostly from small or lower-quality studies. Promising, not proven.
PreliminaryEarly-stage evidence — a promising hypothesis, not an established effect yet.
LimitedVery limited evidence — treat this as a hypothesis, not proof.
InsufficientNot enough good evidence to draw conclusions yet.

Certainty — how sure we can be that the effect is real

Very highVery sure — strong, consistent evidence
HighFairly sure — consistent evidence from good studies
MediumModerately sure — new studies could change this
LowNot sure — little or mixed evidence
Very lowVery unsure — almost no usable evidence

Source — where the data comes from

Meta-analysisPooled analysis of many trials — the strongest evidence
RCTRandomized controlled trial — a strong human study design
ClinicalA human clinical study
Reference knowledgeFrom general health-science or pharmacology references, not a study of this exact claim
Animal researchStudied in animals, not humans
Community reportsAggregated user reports — anecdotal signal, not evidence
TheoreticalMechanism-based reasoning, not yet tested

Study grade — quality of each underlying study (A best, D weakest)

AHigh-quality — strong, consistent human trials
BGood — solid evidence with some limitations
CModerate — limited, small, or mixed-quality studies
DWeak — preliminary, indirect, or animal-only

Confidence — how strongly the sources back a finding

A 0–100 score from study quality and agreement

Most supplement evidence is graded C–D. Read it as preliminary signal, not proof.

Full write-up

What is it

This outcome is studied across different approaches, including Ginkgo Biloba, Tai Chi, Yoga, and Cycling. Results describe measured cognitive change and should not be interpreted as meaning that every aspect of thinking improves equally.

How interventions help

Interventions associated with cognitive improvement differ in how quickly they were assessed and whether they were used as a single activity or continued over time. Cycling is represented by an acute bout, with changes assessed soon after exercise, whereas yoga, Tai Chi, swimming, meditation, and other movement-based approaches were evaluated as ongoing practices or programs. The reported outcomes span global cognitive measures, memory, attention, processing speed, reaction time, and errors on specific tests, so “cognitive function” does not refer to one uniform ability.

Supplement-based approaches generally involved repeated use over weeks or months rather than an immediate effect. Examples include Ginkgo Biloba at 120–240 mg/day over 22–26 weeks, Curcumin at 0.16-4 g/day over 8-48 weeks, Panax Ginseng at 450 mg/day for 12 weeks, and Bacopa Monnieri at 300–450 mg/day for 12 weeks. Vitamin B12 was studied at 50 µg/day for 6 months. These time frames indicate that findings from longer courses should not be treated as evidence for a same-day change.

The timing was shorter for some approaches: Holy Basil (Tulsi) was studied at 300 mg/day for 4 weeks, with improvement reported after 2 weeks, while other interventions were assessed over weeks without a single common schedule. Vitamin B9 (Folate) varied across included studies and did not require daily use in the reported research. Overall, the evidence includes both acute performance changes and changes observed after sustained practice or supplementation; these should be interpreted as different kinds of outcomes rather than interchangeable effects. Studies included people with mixed health statuses for several movement-based approaches, while health status was not specified for many supplement and meditation findings.

Choosing guidance

For a choice supported by human research, the exercise-based options offer different practical paths. Yoga, Tai Chi, Cycling, Swimming, Hatha Yoga, Meditation, and Ginkgo Biloba were studied in people, but the findings do not all describe the same kind of change: some involve ongoing practice, while Cycling was examined for an acute bout. Tai Chi and Cycling also have conflicting evidence, so results may be less consistent across studies. These options may suit readers who prefer movement or a practice rather than a supplement, while Ginkgo Biloba is better viewed as a sustained course rather than a rapid test.

Several supplements were studied over weeks or months, including Curcumin, Panax Ginseng, Bacopa Monnieri, Vitamin B12 (Cobalamin), Quercetin, and Saffron Extract. Holy Basil (Tulsi) stands out as a faster-appearing option, with improvement reported after 2 weeks, whereas the available findings for other supplements generally reflect continued use over a longer period. This distinction matters when deciding whether an option fits a short-term goal or a longer trial.

The evidence applies unevenly across options. Some choices have human clinical or randomized-trial support, while Box Breathing, Gratitude Journal, Ozone Therapy, BCAA, Anusara Yoga, Vinyasa Yoga, and Yin Yoga are represented by anecdotal reports rather than established clinical evidence. Saffron Extract and Lutein also have human-evidence limitations in the listed research. Choline (Bitartrate) is based on a small study with a reported lasting effect after stopping, so it should not be treated as representative of all options. Finnish Sauna and Ice Bath / Cold Plunge have limited support, with no effect shown for Ice Bath / Cold Plunge in reasoning.