Celebrity Bikini Body Secrets: Something to Inspire You to Get Your Butt to the Gym (PHOTOS)

At 44 years old, Jennifer Aniston still has one of the most rockin’ bods in Hollywood. She credits her lean arms and toned abs to a mixture of cardio, resistance training, and yoga, paired with a high-portein, low-carb diet. (With room to cheat on Mexican food and margaritas, of course.)