I'm in complete agreement with respect to the benefits for CNS stimulation. I have no doubt there are other ways to achieve it than lifting heavy weights, just

I'm in complete agreement with respect to the benefits for CNS stimulation. I have no doubt there are other ways to achieve it than lifting heavy weights, just that that method has been particularly helpful for me. I recall seeing some research a while back that the neural stimulation of lifting actually improves brain health. Naively that seems weird, but once you learn a bit about how motor units are recruited it starts to make sense. My knowledge of biology is at the undergraduate level, but my intuition and personal experience both say that there are no truly discrete systems in the body. They all affect each other to some degree, just some more than others. Given that, the idea that breathing exercises could cause positive adaptions in the CNS is something I'd expect. Where I'm ignorant is what the magnitude of those adaptions is given what appears to be a relatively mild training stimulus. My guess is that advanced efficacious breathing techniques must be far from mild, but I freely admit my ignorance since I've never done anything past the silicon valley corporate mindfulness workshop.