Cold showers after training don't seem to short circuit the training effect. He does say that it's good to do heat. For maximum growth hormone, hormone release, get into the sauna for 30 minutes as hot as you can safely tolerate. You'll probably get in and you won't even know what is this? What's the big deal? I did a post right of you as a baby. It's clearly nature nurture. Clearly you were born with that.