The Science of Happiness The Science of Happiness

How to Protect Your Brain as You Age

Sep 10, 2026 · 25m

Summary

This episode challenges the myth that memory loss is an inevitable part of aging by exploring the science of neuroplasticity. Guest Crystal Lewis shares her experience using Dr. Majid Fotuhi’s 12-week brain fitness program, which includes memory games like the "Memory Palace" and name-memorization techniques. Dr. Fotuhi, a neuroscientist at Johns Hopkins, explains how lifestyle factors such as exercise, sleep, and purpose can physically grow the hippocampus. The discussion offers practical, science-backed strategies to maintain cognitive health and reduce anxiety about age-related changes.

Topics discussed

Intro: Challenging myths about aging and memory Preview of science-backed brain health tips Sponsorships and summer intentions segment Introduction of guest Crystal Lewis Crystal's daily life and the impact of caregiving The NAME acronym for memorizing names The Memory Palace technique and its benefits Reflections on aging, presence, and joy Transition to Dr. Fatouhi and Fast Friends challenge Sponsorships: Kachava, Mood, and Nathan & Sons Dr. Fatouhi's background and neuroplasticity Debunking the inevitability of cognitive decline The hippocampus and modifiable risk factors Results of the 12-week brain fitness program Practical memory tricks: affirmations and humor The critical role of slow breathing and exercise Sleep, purpose, and reducing stroke risk Building a realistic brain health routine Outro and credits
Listen ad-free on Castria