Rhonda Patrick· PhD
Here is the pioneering study showing an aerobic exercise regimen in older adults can reverse the natural hippocampal shrinkage by about 2%, counteracting the typical 1-2% annual 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.
Here is the pioneering study showing an aerobic exercise regimen in older adults can reverse the natural hippocampal shrinkage by about 2%, counteracting the typical 1-2% annual loss.
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Studies show that older adults who stick to a year-long aerobic exercise regimen can increase their hippocampal volume by 2%, effectively reversing the natural age-related decline of 1-2% in this critical brain region.