I think that further reinforces the point - There's an enormous boost from doing anything at all. In most things, there's a pretty significant falloff in terms

I think that further reinforces the point - There's an enormous boost from doing anything at all. In most things, there's a pretty significant falloff in terms of the reward of what you're doing but with exercise, you get that for pretty much every step along the way. For you it's deadlifts, for me most recently it was bench presses relieving tension in my chest and upper shoulders and neck which was giving me headaches. I'm sure I'd get a similar return if I focused on deep squats or deadlifts for a little bit.