The goal of training should be to use the minimum amount of stimulus necessary to trigger a change in the body.

“the goal is to do as little as possible to elicit the most amount of change. And I just that has served not only me but the clients that I've trained for so long of getting that through their heads. The goal is to do as little as we possibly can to elicit some sort of change.”

The consistent application of progressive overload, which can involve increasing lifting weight or volume, is the key factor that causes muscle growth.

“In fact, almost nothing correlates as closely to building muscle as progressive overload. In fact, some people say nothing causes building muscle. It's only progressive overload. We're going to break it down today. What it is, what it isn't, and what you need to think about when you get started with”