The 21-Day Plan
Sure, we’re suckers for a workout that promises flat abs and a tight butt as much as the next girl. But there’s a more important reason to exercise: It makes you feel great. “Good mental health is just as important as good physical health, and exercise is crucial to getting both,” says trainer Jeanette Jenkins, author of The Hollywood Trainer Weight-Loss Plan: 21 Days to Make Healthy Living a Lifetime Habit. Her plan celebrates all of the fab stuff that comes with exercise: more energy, better health, and the motivation to keep coming back for more. So while this routine will definitely help you see an improvement in the right-around-the-corner skimpy-outfits season, it’ll also help you love the shape you’re in, inside and out.