This 15-Minute Workout Hits its Your Chest Abs, and Belly Fat With No Weights or Equipment

Clear a space in your living room and find a sweat towel. For this no-equipment calorie burner home workout, follow an “every minute, on the minute” format: at the start of each minute, you’ll begin an exercise and work for either 20 seconds (beginner), 30 seconds (intermediate), or 40 seconds (master).

Use what’s left of the minute to rest, then launch into the next move with the same timings. Work through the circuit, take three minutes’ rest, then start again. Go all out – there’s no time to lose.