Once again, 30-day fitness challenges are all the rage on social media. Whether it's a family workout challenge, a flat-abs-in-30-days challenge, or a popular 10-minutes-of-yoga-a-day-for-30-days ...

Here's exactly what you're working when you hit the bar to do one of the most comprehensive upper body exercises.

Scientists discover that muscles repair themselves by moving thousands of internal nuclei, a rapid process that is key after ...

There's an idea that larger muscles burn a lot more energy while at rest. But is that true? When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. While ...

The more we move, the more our muscle cells begin to make a memory of that exercise. MIT Technology Review Explains: Let our writers untangle the complex, messy world of technology to help you ...

Danielle “Nellie” Bruns, an associate professor in the University of Wyoming’s Department of Zoology and Physiology, has received a five-year, $1.78 million research grant from the National Institutes ...

Sit-ups and crunches both target your core muscles, but work differently. You can use both exercises to build strength, endurance, and control.