There's a reason why Survivor endurance challenges don't last as long anymore. In the past, players spent hours and hours battling it out in true tests of endurance and grit, like in fan-favorite Get ...

Soldiers from 1st Brigade Combat Team, 1st Cavalry Division, participate in the flexed-arm hang event during the German Armed Forces Proficiency Badge testing at Grafenwoehr Army Base, June 24, 2014. ...

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. We spend a lot of time ...

YOU PROBABLY DON'T think about your forearms when you're planning a workout. There are other muscles that take up more attention—the biceps and triceps on your arms, for example—because of their ...

View post: An Exercise Scientist Says These 3 Calisthenics Exercises Are the Key to Functional Strength and Longevity After 40 Anthony J. Yeung, C.S.C.S. View post: Build Cyclist-Level Endurance and ...