Rhonda Patrick· PhD
In older adults, just one year of regular aerobic activity increased hippocampal volume by 2%, effectively restoring 1–2 years of brain loss.
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The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
In older adults, just one year of regular aerobic activity increased hippocampal volume by 2%, effectively restoring 1–2 years of brain loss.
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Native comments, Twitter mentions, and Reddit threads about this claim — surfaced together so the conversation isn't fragmented across platforms.
Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
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Aerobic exercise can reverse age-related brain shrinkage.