JENNIFER ANISTON IS starring in a new movie alongside Adam Sandler called Murder Mystery 2 that looks so, so good. Naturally, Aniston was at a photocall to promote the movie, and she brought her sculpted arms out to play.

It was clear from the photos that the 54-year-old star is jacked right now. Like, someone has clearly not been skipping arm day at the gym. Sure, Aniston has always been strong, but wow are her biceps sculpted these days.

Here she is on the red carpet, posing for some photos:

So, what’s Aniston doing to get so strong and build those muscles? A lot, actually.

Her trainer, Gloveworx founder Leyon Azubuike, previously told Women’s Health that Aniston works out nearly every day for an hour and a half, and she’s seriously dedicated. They’ve done sessions as early as 3 a.m. when she has an early morning photoshoot or a busy day.

FYI, Aniston just told Women’s Health that she usually has a bedtime of around 8:30 p.m. “Usually I do a wash routine, a hot hot bath with Epsom salts or magnesium salts,” she says. “Then I do my meditation. That slowly allows my mind to relax without any other stimulation and my body unwind.”

Okay, but back to her fitness routine. To work her core muscles, Aniston likes to do V-ups and use an ab wheel to build strength. “We’ll use a sit-up to shock the body occasionally, but it’s not a major part of our core regimen,” Azubuike said.

These days, she mostly does Pilates and P.volve workouts. She’ll also sometimes opt to use a VersaClimber, treadmill, or do mat work for about 45 to 60 minutes.

Aniston is also happy to have guests join her during her workouts—she recently shared a sweet Instagram Story that showed her doing exercises at home while her dogs kinda-totally got in the way. Jen tried to do bicycle crunches and kettlebell squats as her pups did whatever the heck they wanted—as long as they were right on top of her.

But Aniston doesn’t just do workouts with her trainer and at-home exercises: She’s also into yoga. In 2021, she posted a video of herself working through various moves.

Oh! And she digs boxing, too. “I love it,” she told InStyle. “It’s the longest workout I’ve actually stayed with consistently other than yoga. There’s something about the mental aspect of boxing—the drills, your brain has to work, you’re not just sitting on a bike. It’s amazing.”

On the food front, Azubuike told WH that he likes his clients (including Aniston ) to focus on nutrient-rich foods, like healthy carbs, protein, leafy greens, and a rainbow of vegetables. And, for breakfast, she loves to reach for a smoothie that has fruit, almond milk, collagen powder, greens and caffeine.

Korin Miller is a freelance writer specializing in general wellness, sexual health and relationships, and lifestyle trends, with work appearing in Men’s Health, Women’s Health, Self, Glamour, and more. She has a master’s degree from American University, lives by the beach, and hopes to own a teacup pig and taco truck one day.