Can this 30-second challenge predict how long you’ll live? The 30-second sit-to-stand test has gained popularity for its gimmicky promise of predicting how long you’ll live, Hone Health reports. While ...

The dead hang looks simple — you grab a bar, let your body hang, and hold on for as long as you can. But anyone who’s tried it knows it’s a serious test of grip strength, shoulder stability,... The ...

How long can you hold a plank — and how does it stack up to others in your age group? That’s the question that was posed on "Fox & Friends" Thursday morning, when co-hosts Brian Kilmeade and Lawrence ...