Why Taking Time Off From Exercise Is Good For Your Health

By Daniel Duane for Men's Journal

There's nothing like a new season to get us fired up for sports again -- bulking up for summer's Tough Mudder, or sneaking over to the track for speed work while dreaming of a personal best in that half-marathon this fall. But years of research and experience have led to a surprising new consensus among trainers, coaches and athletes, best summ