Some things are easier to learn when you're a kid, like an instrument or a sport. NPR's Avery Keatley visited a gymnastics class outside of Washington, D.C., to find out why it's important to keep ...

I won't say that it is impossible, but it is much, much harder when you start as an adult. I think around 10 years old is the cutoff, or maybe up to mid teens if you are _really_ motivated. I think it ...