Every new year comes with big intentions — and the quiet fear that I'll end up doing exactly what I did last year.

You hobble off the treadmill or shakily rack your weights, drenched from the last half hour. Plenty of people judge the quality of a workout by the sweat dripping down their face, assuming more sweat ...

Sweating is a natural part of any good workout, but when you produce sweat, does it help you lose weight? Some believe that ...

Jessica Biel’s go-to fitness routine may not have you feeling in seventh heaven in the moment. But the results certainly speak for themselves. Admitting that she has seen the chatter about the her ...

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. Sweat isn’t an ...

Here’s what happens to your body during a hot fitness class. By Emma Yasinski For some people, sweating through an intensely hot workout class can border on a spiritual experience. For others, a ...

Break a sweat with fitness instructor Poofy Moffitino, who leads this 10-minute summer-sweat dance-party workout joined by Lilian Gonzalez and Chelsey Cioli. You'll make the most of every second in ...

Everyone sweats, and it's a good thing we do. Without the ability to cool off through perspiration, our bodies couldn't release heat and we would die. For most people, sweating is an everyday part of ...

I skipped the gym and asked ChatGPT to build an at-home workout instead — here’s what happened and whether it actually made me sweat.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Staying active and healthy throughout the year is a challenge we all face. While the difficulty can range ...