The Cougar Town actress, who appears on the new cover of New Beauty, uses the Tracy Anderson Method four times a week to stay in shape, she revealed in an interview with the magazine.
Anderson, a celeb trainer, is a favorite of Gwyneth Paltrow, Olivia Wilde and Nicole Richie.
And while Cox eats healthy most of the time, the former Friends star fessed up to a few indulgences.
Cox also shared that getting older isn't always a bad thing. "Beauty over 40 is a slippery slope, but the life experience and knowledge we gain can make us sexier with age."