In fact, she’s cut her workout down to five minutes. Five. Minutes.
Promoting her health and wellness book The Longevity Book earlier this month, the 43 year old spoke to the Oprah Winfrey Network about the cardio workout she swears by.
“Some people can get on the cardio machine for two hours at the same pace. It’s the same sweat, just like a nice little glisten. What you want to do when you do cardio is you want to be a fire hydrant in New York City that just got busted open, and you’re pouring out after and everybody gets wet,” she said.
“That kind of cardio only takes five minutes which I love because I just get on my elliptical and I do intervals.”
Diaz sprints for a minute, rests for a minute to bring her heart rate back to normal, then repeats this five times.
Watch: Mamamia staff reveal their most embarassing gym confessions. Post continues after video
“After you are bursting with sweat, you’re building your heart, you’re burning more fat than if you stayed on it for an hour because you’re making your body use this energy super quickly and you’re engaging all your muscles,” she said.
While it’s important to remember that Diaz doesn’t actually have any fitness or health qualifications, she is onto something.
This kind of workout, known as High Intensity Interval Training (HIIT), is an effective one and a favourite of personal trainers. (Post continues after gallery.)