Ask most people how often they should exercise and they'll say three or four times a week. Ask a physiotherapist who works with recreational athletes and you'll get a different answer: daily movement, in some form, beats scheduled workouts almost every time. The reason isn't mysterious. Your body adapts to whatever rhythm you give it, and a body that moves every day stops treating exercise as a shock and starts treating it as normal. Sport specifically, not gym machines, gets credit here because