Boot camp-style workouts have been around for decades. But now they come in many shapes and flavors—from bridal boot camps designed to tone people up for their nuptials to “prison-style workouts” ...

To make it in the military, you’ve got to be tough. Recruits go through grueling workouts to get their bodies into top shape, doing drill after drill of push-ups, sit-ups, jumping jacks, pull-ups, and ...

The physical benefits of exercise are well-known — regular workouts promote weight loss, boost energy, and help prevent or manage health problems. Exercise also helps aid in muscle growth, which is ...

Markham Heid is a contributor at TIME. He is the author of The Habit Trap, due out in early 2027. Bethan Mooney for TIME Boot camp-style workouts have been around for decades. But now they come in ...