Exercise and Brain Health After 55: What the Largest Meta-Analysis Found

A 2018 meta-analysis by Northey and colleagues in the British Journal of Sports Medicine pooled data from 333 trials involving over twelve thousand adults and found that all forms of exercise — aerobic, resistance, mind-body, and combined — produced statistically significant improvements in cognitive function in adults over fifty. In 2018, Northey, Cherbuin, Pumpa, and colleagues at the University of Canberra published a systematic review and meta-analysis in the British Journal of Sports Medicine that synthesized three hundred and thirty-three randomized controlled trials examining the effect of exercise on cognitive function in adults over fifty. The total participant count across those trials exceeded twelve thousand individuals. The central finding: all major exercise modalities — aerobic exercise, resistance training, mind-body practices such as yoga and tai chi, and combinations of the above — produced statistical --- Paper cited: Exercise interventions for cognitive function in adults older than 50: a systematic review with meta-analysis Authors: Northey JM, Cherbuin N, Pumpa KL, Smee DJ, Rattray B Journal: British Journal of Sports Medicine Year: 2018 DOI: 10.1136/bjsports-2016-096587 --- Subscribe for one peer-reviewed paper made practical, every Tuesday and Friday. Free guide: How to Read Your Biomarker Panel at 55+ - {{LEAD_MAGNET_URL}} --- EDUCATIONAL CONTENT - NOT MEDICAL ADVICE This video is for general educational and informational purposes only. It summarizes peer-reviewed research. It does NOT constitute: - Medical advice, diagnosis, or treatment - Recommendations to start, stop, or change any medication - Dosing instructions for supplements or interventions - A substitute for consultation with a licensed physician Before applying anything discussed: - Talk to your physician, especially if you take prescription medications (statins, metformin, blood thinners, antihypertensives, GLP-1 agonists, etc.) - Discuss interactions, contraindications, and your individual risk profile - Get baseline biomarkers before changing your regimen if relevant Specific cautions: - Intermittent fasting: not appropriate for people with diabetes (especially Type 1), history of eating disorders, pregnancy, or underweight status without medical supervision. - Strength/Zone-2 training: medical clearance recommended for cardiovascular or joint conditions before initiating new training loads. - Supplements: third-party tested products preferred; verify drug interactions. AFFILIATE DISCLOSURE (FTC compliant): Some links in the description may be affiliate links. We may earn a commission at no additional cost to you. We only feature products and tools relevant to the research discussed. AI-ASSISTED PRODUCTION: Voice narration is generated via Edge TTS (Microsoft Neural Voice). Research, scriptwriting, and review are conducted by a human editor before publication. Reviewed: 2026-08-27