Jennifer Aniston works out at five in the morning.

The Horrible Bosses star gets up early in the morning so she can do her “pretty intense” exercises.

She said: “If I’m working, I’m up at 4:30, 5 a.m. If not, between 8 and 9 a.m., because I’m a late-night person. But usually when I wake up, I’ll make my standard cup of H๏τ water with a slice of lemon in there.

“Then I’ll go do a workout of some sort. I have a trainer, a wonderful woman who I do this spin-yoga class [with]. We spin for half an hour, and then do yoga for 40 minutes. That’s pretty intense.

“Then I go to a gym, where I do strength training or just my own thing on the treadmill, the bike, or the elliptical, just to change things up.”

The former Friends actress also shared details about her breakfast routine, revealing she is a big fan of protein shakes.

She told Well +Good: “Usually I’ll have a shake, with some sort of pure protein, then bananas, blueberries, frozen cherries, stevia, a vegetable mix of dynamic greens that goes in there, maca powder, and a little cacao.

“If I don’t have a shake, I’ll just have some toast and poached eggs with some avocado. Or millet cereal with almond milk and bananas – it’s really yummy, and you can get it H๏τ for winter months.”

She gushes: “I like making jokes. I’m lucky because Justin is the funniest person I’ve met and we make each other laugh. Laughter is one of the keys to staying youthful.”

The couple wed last year and Jen says: “Married life is so normal and fun.”

The actress insists she is comfortable about her age.