@theline_show: Search 'THE LINE DR. MAJID FOTUHI' on YouTube to watch the full episode. Neurologist Dr. Majid Fotuhi reveals the 5 pillars of brain health and the science behind how exercise can physically increase the size of your hippocampus. If you want a sharper, younger brain, these are the non-negotiables. 🧠⚡️ #brainhealth #neuroscience #hippocampus #biohacking #memorytips