Summarized by Masters of Longevity from Youtube — Siim Land.
Regular aerobic exercise as little as two hours weekly — a short, evidence-focused health piece explaining the type of research behind brain-volume changes.
Key Takeaways
- A year-long randomized trial found supervised aerobic walking increased anterior hippocampal volume by about 2% while controls lost 1.4%.
- Shorter trials showed hippocampal growth in inactive younger adults after 6–16 weeks of regular aerobic training lasting roughly 2–2.5 hours weekly.
- One study reported hippocampal volume gains returned to baseline within six weeks after stopping exercise, indicating effects require continued activity.
