Burpees are often a move that garners grunts and groans during training sessions — and there’s a reason why people dread them. The exercise combines a series of workout moves, including the squat, ...

Ryan Peck, 38, had multiple blood clots in his lungs that could have been fatal. After a long recovery, he wanted to regain his fitness, so he started doing 150 burpees a day. Now, he completes the ...