Photo: Courtesy of Exhale and Fred DeVito
Strengthen Your Core
You've heard it before (and that's because it's true): A strong core helps support your spine and tighten your tummy—and it's more comfortable than sucking everything in to look slimmer. This do-anywhere exercise was developed by Fred DeVito and Elisabeth Halfpapp, the creators of the ab-busting program Core Fusion. In this position, you'll be toning not only your abdominal muscles but also your chest, shoulders and arms, DeVito says.