HIIT is not the only or the best way to improve your cardio endurance and heart health. Steady, repeatable exercises can ...

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 ...

Beth Skwarecki is Lifehacker’s Senior Health Editor and has been writing about health, fitness, and science here since 2015. Beth was the recipient of the 2017 Carnegie Science Award in science ...

With these five ideas for fun cardio HIIT workouts, you'll be enjoying your exercise routine more than ever. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...

Interval training is great for boosting cardiovascular endurance and promoting overall fitness. Our fitness expert, Judd NeSmith, NASM-CPT, PES and founder of Serious Fitness, explains interval ...

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 ...

Presented by Athleta, this HIIT workout is basically a guaranteed confidence boost. Celebrity trainer Amanda Butler leads you through two different rounds of full-body interval training, helping you ...

When it comes to carving out time to work out, many people believe an hour is necessary to really feel the muscle-quaking benefits of a good sweat sesh. That, my friends, is a piece of fitness fiction ...

Well, after a six month hiatus during which I was abroad in moldy England, I have returned to Tufts, ready to continue doing what I love: dispelling those asinine fitness myths that have propagated ...

Walking? Lifting weights? Does it matter what zone you’re in? I have answers.

After years of doing cardio and HIIT classes, I'm trying to incorporate more strength training into my fitness regime as I want to build some muscle (and have next to none). My question is: If I carry ...