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The inventor of a super-intense, 1,000-calorie workout loved by Kim Kardashian just opened its first studio in Singapore – here’s a peek i...
The super-punishing workout is said to cause a spike in metabolism for up to 48 hours.
Chris Jordan, the exercise physiologist who created the 7-minute workout, explains why it can help get your heart pumping and build muscle.
In its new guidelines, the U.S. Department of Health and Human Services called out high-intensity interval training, or HIIT, as a beneficial form of exercise.
Celebrities swear by a fitness-training regimen called HIIT — make sure to avoid these common mistakes when you try it
High-intensity interval training, or HIIT, is a popular workout trend celebrities swear by. Here's what to know about it.
Most popular HIIT classes aren’t actually high intensity, according to a personal trainer — here’s what a HIIT workout really is
Real high-intensity interval training, or HIIT, involves working to 90% capacity and can't be maintained for a long period, according to Alice Liveing, a personal trainer and Instagram star.
A hot new type of workout you can do in under 10 minutes is gaining traction, and scientists are into it
A new fitness routine called HIIT, or high-intensity interval training, is gaining traction among celebrities and athletes. A spate of recent research suggests the method could produce equal or better results than traditional workouts.
The app gets your heart pumping and helps build muscle using interval training, which alternates short and powerful bursts of exercise with periods of rest.
Celebrities like Katherine Heigl are praising a viral fitness regimen for whipping them back into incredible shape — here’s how it works
Sweat With Kayla and BBG (Bikini Body Guide) are based on a science-backed routine known as high intensity interval training, or HIIT.
The best thing to eat before and after you exercise, according to the fitness guru behind the viral ‘Insanity’ workout
Shaun T. prefers to exercise first thing in the morning on an empty stomach, but sometimes needs a snack to keep him fueled before and after a workout.
The fitness guru behind the ‘Insanity’ workout told us the main reason you’re not motivated to exercise — and how to dive back...
The same fitness routine can become monotonous fast. With that in mind, Shaun T. told Business Insider how to avoid getting bored and keep going.