Jennifer Aniston has been putting in some serious hours in a bid to maintain her age-defying body, according to a report that claims to lift the lid on the star's diet and exercise regime.

The former Friends actress reportedly keeps cellulite at bay with a healthy combination of "running and yoga and eating well."

Jennifer has admitted that she turned to yoga after her painful divorce from Brad Pitt in 2005, telling Self magazine, “I was crying through moves,

“It’s good to get that stuff out. You feel like you’re having a therapy session, a workout and a meditation at the same time.”

According to the latest issue of US Weekly, Jennifer works out with her instructor and friend Mandy Ingber in her home gym for two hours every other day, starting with yoga and then finishing with 20 minutes of cardio on the elliptical or treadmill (at 5.7 mph at an incline of 1.5 to be precise.)

And during shooting for rom-com Marley & Me, the actress was reportedly up at 6am each morning to go for a run before filming.

Jennifer made waves when she showed off the results of her hard work by posing naked on the cover of the January edition of GQ.