 I think that's a trainer, that was the word. What is the best exercise for your advice? The one exercise. What is the one? The one that I can do. It's difficult for us to always thinking in this systems approach. What's less important or more important? Your sleep or your nutrition or quality of your movement or your belief or the team that you're with or the people, like which one of those things you want to write off, you know? So as we come in, we're always taking this systems approach. And what you can actually see in the book, for example, is that we sort of divide things. We have some movement behaviors that we think we should be putting on your radar. Your ability to flex your hip, AKA get up and out of the ground or squat. Your ability to extend your hip, like lunge or walk or run, is your fundamental things that maybe you can't know how they impact how your back hurts or potentially how your knees hurt after you run or stand. And so we need to put them on people's radars first. This is important because you're gonna use these things.