It can look almost too easy: athletes gliding along on a bike, runners shuffling at a pace slower than most people's warm-up, or someone strolling so gently it barely seems like exercise at all. Yet ...

It can look almost too easy: athletes gliding along on a bike, runners shuffling at a pace slower than most people’s warm-up, or someone strolling so gently it barely seems like exercise at all. Yet ...

Hate the gym? Don’t want to break a sweat? There’s a new fitness trend just for you — and it’s called Zone Zero. Zone Zero movement is ultra low-intensity activity — so low, your heart rate never even ...