Movie star Jennifer Aniston is 45-years-old and reportedly staying as healthy as possible, which could partially be due to her new film Horrible Bosses 2 where she will reprise her role as the maneating doctor.

Kevin Spacey Teases How His Character Will Fit Into 'Horrible Bosses 2'

On Monday, yoga instructor Mandy Ingber spoke to ABC News about the actress who has been working hard to stay fit and healthy. She mentioned that Aniston cuts down on snacks before a big trip, and it's possible that her diet applies towards her acting work.

"She won't have the extra chips," Ingber said. "It's kind of like just being disciplined, she's like anyone else that she goes through those times when she can lose a little but prety much, she's always in great shape."

Jennifer Aniston Gets Even More Inappropriate In 'Horrible Bosses 2'

Considering that Aniston went almost nude a couple times in the first Horrible Bosses, odds are likely she had to keep up with her motivation to stay fit for her sexually provocative character. Ingber mentioned certain exercises the actress has been doing, which gives more insight on how she'll look in the upcoming sequel.

"She focuses on butt exercises for sure, I'll add some squats into the yoga routine," the instructor said. "For me, there's no better thing to lift your butt than squats. Pretty much, that's gonna do it...she likes to focus on that like most women. Most of us want that are a little higher."

Horrible Bosses 2 is set to hit theaters on November 26.

Check out the trailer for the film below.