Charlie Schreiber is a climbing coach who runs Paradigm Climbing and works with all levels of athletes–including elite, competitive ones–from all over the world. He’s also a very strong boulderer, having sent up to V13 and continuously training to improve his own climbing.

In this interview, we talked about a range of topics, including how he used to overtrain and how his climbing and physical well-being improved when he learned to be more efficient with his training. This concept permeates the rest of our talk, as it guides him as a coach to do the best job possible.

• His experience as a youth coach