Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. High intensity ...

This is something you might not expect when it comes to an intense workout session: as it turns out, getting a killer cardio ...

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

High-intensity interval training is a workout technique that gets you a lot of bang for your buck. This type of workout serves as cardio and strength training, burning calories, boosting your ...

When you're trying to burn fat, there's one form of exercise you'll start hearing a lot about: high-intensity interval training, or HIIT. These cardio exercises should be done all-out, as hard as you ...

The American Heart Association recommends that adults get "at least 150 minutes per week of moderate-intensity aerobic activity or 75 minutes per week of vigorous aerobic activity" — or a combination ...

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

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.

It’s not news that high-intensity interval workouts can help you improve your health and fitness in less time than traditional cardio. But even the researcher behind a new study that compared the two ...

Cardio and strength training provide different adaptations. Interval cardio primarily challenges the cardiovascular and ...