Compared to a chin-up, pull-ups better engage the lower trapezius muscles in your back, between your shoulder blades. The overhand grip of the pull-up improves posterior chain activation, says Sobuta.

Like pull-ups, chin-ups can also improve your posture by strengthening the muscles in your back and shoulders. That’ll make it easier to hold your shoulders back and down, Mentus says.

The chin-up works many different muscles in your upper body—namely, your biceps, delts, and lats, Traugutt says. That means if you can’t do a chin-up, you probably don’t (yet) have the arm ...

It's hard to knock out a 5k or some barbell squats on your way out the door—but the only thing you need for a set of chin-ups is a bar.

Bobby Natoli, a sophomore at Oswego High School, did 53 chin-ups to earn his place in the Guinness World Records for the most chin-ups done in one minute. "He destroyed my record," Bob Natoli says.

Joe Wicks has sparked debate after posting a video showing his son Marley, 3, doing chin-ups in their home gym. The 38-year-old explained in the caption that his little boy, one of his three kids ...