 I was a kid and this power lifter was trying to teach me how to get a better bench press, to develop better chest. And he says, you know, drive into the floor with your legs. And I said, what do the legs have to do with a bench press? And he says, here, try this out, squeeze your right hand as hard as you can, but keep the rest of your body totally relaxed, including your face. And I did. And he says, now squeeze your hand as hard as you can, but go ahead and tense up the rest of your body. Because you notice a difference? I said, yeah, I can squeeze way harder. In fact, you do this naturally. Why is that the central nervous system fires more juice when the whole thing is firing? If I'm firing to my hand, it'll only power up with so much juice. If I fire up to the whole body, it's going to fire up more not just because it's firing to the whole body more, but it's also firing more to my hand. What these movements do because they utilize so many muscles because they require stability and balance requires you to grip your hands real tight, stay straight and strong, brace your core, your calves, your ankles, your knees, your hips. It is training your CNS. This carryover goes to every other exercise.