Cryotherapy, also. I'm wondering if what's actually going on is the temperature swings are what's important, not how they come about. I have also seen both sc

Cryotherapy, also. I'm wondering if what's actually going on is the temperature swings are what's important, not how they come about. I have also seen both scuba diving and skydiving suggested as beneficial due to the oxygen changes. Could this perhaps be a form of exercise for the body's regulatory systems?