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Biological age & clocks Healthspan & frailty Health & inequality Medicines & safety

Diet patterns Food & disease risk Processed food & drinks Gut health & digestion

Vitamins & minerals Performance & longevity compounds Herbals & botanicals Supplement safety

Cardio & intervals Strength & muscle Function & mobility Bones & joints

Sleep duration Regularity & circadian Quality & disorders

Cognition & memory Mood & mental health Dementia & Alzheimer's Screens & digital health

Weight & obesity GLP-1 & weight-loss drugs Blood sugar & diabetes Cholesterol & heart Blood pressure

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Exercise

Page 17 of 17

A person riding a fan-wheel exercise bike in a darkened gym

HIIT cut fat and held muscle in older adults, but barely

Jul 17, 2026

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Evidence-first health & aging science. What the research actually says - properly cited, never medical advice.

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