Four times a week, as soon as she finishes on the set of her CBS sitcom, The Big Bang Theory, Kaley Cuoco jumps in her car and heads out to a stable to ride her horse, Falcon. "When I'm riding, I don't think about work, relationships, or anything stressful; I'm just in the moment," says Kaley, 22. "It's the perfect combination of a mental and physical workout. After an hour, I'm exhausted. I work muscles I don't use otherwise: My legs, butt, core—everything is sore." This California girl has a few other tricks for staying fit and focused, no jodhpurs necessary.

BALANCE YOUR WORKOUTS
"In addition to riding, I've always exercised at the gym. But a while ago, I was starting to get bored with my routine, so I tried Spinning—and fell in love with it instantly. I go to class three times a week, without fail. I always get there early so I can sit in the front of the studio, and I'm ready to go as soon as the instructor comes in. Doing something I really enjoy has made a huge difference in my motivation level."

SAVOR THE LITTLE THINGS
"Diet cola is my absolute favorite drink in the world; I used to drink four cans a day. But to help me cut down, I've turned it into a treat. Now, instead of having dessert, I'll have a can of diet soda. Putting a limit on how often I can drink it has helped me appreciate it more."

JUST SAY YES TO HEALTHY TAKEOUT
"I'm a good eater and like to make my own meals. I start my day with granola, fresh fruit, and skim milk and end it with something healthy that also comes from my own kitchen. But right now I can't get enough of the 6-inch vegetarian whole-wheat sandwich from Subway. I pick one up after my Spin class and pile jalapeños and onions on it to spice it up. It's my default meal; I know exactly how many calories are in it–260–and I never have to think about what to order. Lunch: done!"