BOXING SLIMS THE WAIST

Punching it out is a terrific way to streamline your entire upper body fast, asserts Haley. “Twisting and punching across the body engages the obliques, the muscles that cinch in the waist.” Plus, the heart rate–revving cardio work blasts 100 calories in 10 minutes.

TO TONE EVEN FASTER: Focus on pulling your belly button in toward your spine as you punch. This tones the rectus abdominis to help melt a menopot.