ELI5: Explain Like I'm 5

Pull-up bar

So imagine you're at the playground on the monkey bars. You know how sometimes you try to lift your chin above the bar and you have to use your muscles to do it? That's kind of like what a pull-up bar is.

It's a special bar that's designed for grown-ups, and it attaches to a sturdy wall or doorway. When you stand underneath it and grab onto the bar with your hands, you can use your muscles to pull yourself up so your chin is higher than the bar.

This is a great exercise for your arms, shoulders, and back muscles. It's sort of like lifting heavy things, but instead of using your legs to do it, you're using your upper body strength.

Some pull-up bars are really simple and just have one long bar, while others have extra handles or places to attach straps for extra exercises. Either way, it's a great way to get strong and have fun at the same time!