Do you even know what HIIT stands for? We have the answer to that—and more.

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. So where should you ...

You don’t have to strain your knees by running miles to get your cardio in. In fact, if you’re looking to ease into fitness in a way that puts less pressure on your joints, then low-impact cardio ...

Want an exercise program that helps you work out smarter, not harder? You've found it. The Women's Health+ Ultimate HIIT Challenge is a week-long program that combines high intensity interval training ...

Adjusting your exercise routine after 50 is less about slowing down and more about training smarter to support your body's ...

Experts detail the best workout for fat loss, heart health and longevity between strength training and cardio, and how to combine both for maximum results. New research suggests strength training can ...

Mobility coach Dana Santas shows how integrating resistance training into a weekly fitness regimen can benefit women’s heart ...

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. I first tried the ...