Health.com

At 52, Julianne Moore works hard to maintain her slender frame, but not too hard.

"I try to do Ashtanga yoga two to three times a week," she told Health in its November issue. "I've also started working out with a trainer, doing light weights and a lot of jumping around. The main problem is I can't do anything six days straight because I get hurt. That's the thing about old age, eventually your hip starts to hurt and you have to switch and do something else."

The red-headed beauty also keeps a level head when it comes to her diet.

"I did a silly juice cleanse [before the Golden Globes] for three days, which went all over the Internet as if I was a lunatic. I was eating vegetables, not eating sugar, being really careful," she said. "And when I was in yoga that week, I was so much more flexible. My teacher said, 'Wow, you're really bendy.' I'm like, 'That's what it is. It's the food!' Because then you realize how important diet is. Dairy, sugar, alcohol, all those things affect you."

Laughing as she took a bite of her wrap sandwich with lots of cheese, she said, "You can see how long that lasted. Party time!"

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The mother of two even partakes of a dessert, or two.

Moore's daughter Liv told the story of the time the actress ate her dessert and her daughters'.

"Then we went home and I'm in another room and I hear, 'Liv, what's in this bag? Oh! Doughnuts!' I'm like, 'Mom! Don't eat that! You'll make yourself sick!' Liv said.

"So my daughter came to my rescue before I was able to swallow the doughnut after eating two desserts," Moore said.

One habit Moore has that nutritionists would approve of is eating early.

The "Carrie" star said her family, instead of Sunday brunch, has "lunner," a cross between lunch and dinner, around 4:30.

"People will tell me we're having dinner at 7:30, and I'm like, 'Are you kidding?' Moore told Health. "In an ideal world, I'd eat at 5 every night. … We have lunner, and then we play a board game."