In an interview with E News, her personal trainer Peter Lee Thomas has revealed the routine that helps the 51-year-old star stay in amazing shape.
He works with Halle five time a week and says during that time “she doesn’t mess around”.
“...We are doing some boxing, some kick boxing, some Muay Thai... I'm definitely working on those skill sets with her and she's also doing strength and conditioning,” Peter explains.
“She's using kettle bells, bar bells, dumbbells, working on the pull up bar, doing dips, sprinting pushing heavy things, pulling stuff. It's just a really dynamic way to jumpstart anyone's metabolism.”
He says her toned physique is down to the “time tested concept” of higher volume, more reps.
“We combine lower weights with higher repetition, and also using your body weight more. Going outside, not having to be fixed to a certain machine.”
Peter says that the one thing Halle isn’t doing is running long distance, he prefers to keep things “explosive and really metabolic”.
“For longevity purposes it saves your knees and joints. We'd rather do sprints rather than run five to 10 miles.”
And when it comes to food, Halle usually follows a modified Ketogenic diet which is high-fat, moderate protein, low-carb and low-sugar.
In a recent Instagram post, Halle also praised the benefits of a sold post-sesh stretch.
"After I work out, it’s important for me to stretch and lengthen. Fitness is not just about running, lifting and punching. For me, being athletic and super fit is also about being still, stretching and breathing. Including stretching in my fitness program helps my muscles stay long, limber, improves my mobility and range of motion and, most importantly, helps me avoid injuries."
The mum-of-two is also a huge fan of training her mind.
"I can tell you that I’ve felt happier and more like my best self since I started [meditating]," she wrote on Instagram. "I’ve learned that meditation helps to balance your left brain and right brain, and as a result I feel more creative, I can absorb information faster and I experience better emotional health."