High-intensity interval training (a.k.a., HIIT) is a triple threat: “It’s quick, easy, and effective,” says Angela Gargano, a certified trainer and creator of Strong Feels Good & Pull-up Revolution.

Workout trends come and go, but when it comes to the biggest bang for your buck, high-intensity interval training, or HIIT, has staying power. HIIT’s specific origins are uncertain; some say it dates ...

Exercising regularly is extremely important and should be a part of your daily routine. With dipping temperatures and air quality still in the 'very poor' category, people prefer to stay indoors. But ...

If you don't have a ton of time to exercise and want to make the most of the few minutes you're able to squeeze in, HIIT workouts are for you. There are minimal rests during HIIT workouts, and even ...

Sprint interval training can improve aerobic capacity, anaerobic capacity, speed and power, says Stone, and the research ...

Luckily, you don't have to be a pro athlete or an experienced fitness buff to do a HIIT workout. There are plenty of low-impact options for beginners on YouTube, which means they all still torch ...

As HIIT's popularity soars, sprint interval training, or SIT, is doing its best to catch up. Can shorter, harder, faster deliver better results? As the popularity of HIIT continues to soar, sprint ...

As women enter their 40s and beyond, hormonal changes can make it harder to build muscle, maintain energy, and manage body composition. High-intensity training is one of the most powerful tools for ...