158. Ready for a Sharper Mind? | Part 2: Walking is Your New Brain Workout

Last week I told you why walking has quietly become one of the most important habits for lifelong independence. Today we go straight to your brain. New research shows that every walk you take feeds the part of your brain responsible for memory, guards against cognitive decline, and sharpens creative thinking. And the unsung hero behind it isn't your brain at all — it's a muscle almost nobody thinks about: your calf. Scientists actually call it your body's “second heart.” Sit too long, and tha...