A pull-up is one of the purest tests (and flexes!) of strength out there—no machines, no momentum, just you versus gravity. It’s also one of the hardest exercises to achieve. Unlike moves where you ...

If you’re unfamiliar, this trend originated after orthopedic surgeon and longevity expert Vonda Wright, MD, told author and podcast host Mel Robbins in a now-viral clip that all women should be able ...