Start getting stronger and sweat smarter with this fast-paced lower body bodyweight workout, which is part of the Women’s Health+ Ultimate HIIT Challenge. In just 20 minutes, you'll burn a ton ...

High-Intensity Interval Training (HIIT) has revolutionized the way we approach fitness, offering a time-efficient way to get in shape, burn fat, and increase endurance. In just 30 minutes ...

But I also need to clear up this silly question about whether it’s “better than” HIIT (or high-intensity interval training). SIT is, in fact, a type of HIIT. Sprint interval training refers ...