The Boston Globe offers an interesting (and useful to marathoners) multimedia presentation of what a marathon does to your feet, heart, legs, brain, fluids, and muscles. Here’s an excerpt from the bit on what the big race does to our brains: The brain shifts into fight/flight mode and diverts blood from the stomach and digestive tract to the muscles. This causes butterflies in the stomach and twitchy tingling excitement in the arms and legs.
Health, fitness and lifestyle tips for people over 50 who still like to play hard
Saturday, May 31, 2025