One bar. No ego. Just strict form and a whole lot of pain. This Athlean-X pull-up challenge humbled me fast. I filmed every rep, and now I want to see what you’ve got. Post your score and let’s settle ...

Whether it's a dull, underlying ache in your spine or a piercing stab, chronic back pain affects roughly one in four Americans. UC San Francisco's Prasad Shirvalkar, MD, Ph.D., neurologist and pain ...

Everyone thinks they know how to do push-ups, but many people get it wrong. Here's the ultimate tip to avoid push-up errors.