This 30-minute HIIT workout is strength and cardio all in one. Join PS Fit trainer Ashley Joi to break a sweat and get your heart rate up.

Ready to get moving? This full body HIIT workout is designed to challenge your entire body without requiring any equipment. Whether you're working out at home, traveling, or simply want a quick ...

Walking, swimming and HIIT can all improve cardiovascular fitness, but which one is best for you? A cardiologist explains the ...

One of the most popular benefits of HIIT is the “after-burn effect.” This type of exercise stokes the metabolism, increasing calorie burn during the workout — and it stays elevated after the workout ...

Cardio is more enjoyable when you can take a run in a beautiful location or take your time riding your bike around. However, that’s not always an option. This is why high-intensity interval training ...

Working out until you puke isn't actually making you leaner.

An Australian study suggests that HIIT exercises could be optimal for body composition in older age. Image credit: rbkomar/Getty Images A study suggests high-intensity interval training (HIIT) can ...

The fitness world has been obsessed with high-intensity interval training for years, promising maximum results in minimum time through explosive, heart-pounding workouts. But emerging research ...

Curating your fitness routine to better match your personality could help you get the most out of your workouts, a new study shows. The paper, published last month in Frontiers in Psychology, shows ...

Fitness experts break down the research.