In TODAY.com's Expert Tip of the Day, a trainer explains how incorporating HIIT into a weekly workout routine can boost one's ...

HIIT workout founded by a Japanese Olympic coach that uses periods of intense exercise and rest to burn calories.

Let’s be honest: Weight loss is hard. This is true for everyone, but it’s especially true for women, who typically have more body fat and less muscle mass than men. As a result, we burn fewer calories ...

If you've bought into the hype and you don't need to do anything other than High-Intensity Interval Training (HIIIT) to stay healthy and fit, there’s a good chance you're missing out on your goals and ...

Burn fat, boost endurance, and feel amazing - all in just 15 minutes! This no-equipment HIIT workout is perfect for home. Get ...

Torch your muffin top with 9 expert-backed HIIT moves that burn fat, boost metabolism, and sculpt your waist in 15 minutes.

Welcome to Start TODAY. Sign up for our Start TODAY newsletter to receive daily inspiration sent to your inbox — and join us on Instagram! The American Heart Association recommends that adults get "at ...

Perfect for all fitness levels — this 20-minute HIIT workout combines power and endurance to sculpt your body fast!

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." High-intensity interval training (otherwise known as HIIT) may sound, well, intense. And it can be. But ...

The cardio world has split into two passionate camps that argue with the intensity of people debating pineapple on pizza. On one side, you have the HIIT devotees who swear by short, brutal workouts ...

High intensity interval training could be the secret to staying young. — -- Exercising by doing interval training, not weight lifting, could be the secret to staying young, according to a new ...

New research from Edith Cowan University shows that a single bout of weight training or HIIT can boost anti-cancer myokines and reduce breast cancer cell growth in survivors.