How little do you have to do to firm up, lose fat, strengthen bones, improve mood, and boost energy? Renowned New York fitness trainer Pete Cerqua's answer is startling: 15 minutes of exercise a week....

What if you were able to skip the long hours of grueling gym workouts and the endless cycle of sweat and exhaustion that you supposedly need to get fit? And what if even after forgoing those, you could...

What if you were able to skip the long hours of grueling gym workouts and the endless cycle of sweat and exhaustion that you supposedly need to get fit? And what if even after forgoing those, you could...