The Rich Roll PodcastFuture-Proof Your Brain from Dementia & The Lifestyle Levers That Keep You Sharp with Neuroscientist Dr. Tommy WoodHIIT Supercharges Your Hippocampus
42:30–44:56 · 145s
A six‑month trial in older adults shows high‑intensity intervals boosted hippocampal structure and learning more than steady jogging, with benefits persisting five years.