The Power of Heat Training

Keenan Eriksson
11 min readNov 6, 2021

This article was written for Dr. Kelly Starrett and Juliet Starrett’s The Ready State Blog. You can read it there for free, alongside many other awesome articles at

Today is a special day. Today, I want to talk to you about one of the most powerful ways you can improve your training, your health, and your performance. Heat.

Heat training, most often in the form of sauna bathing, has a ton of benefits for human biology. These range from endurance improvements in sport, to muscle mass and strength gain, and even to brain function, mood, and detoxification.

However, heat training can be double edged. The event that kicked off years of chronic disease for me was a sauna session, undertaken immediately after a hard workout and at the end of months of constant exercise, sauna work, and an unforgiving schedule. Most likely you’ll never run into the problems I did, but it’s still worth treating the power of heat training with respect.

And that’s exactly what we are going to do with this article.

Getting Lit

One of the first articles I ever wrote for The Ready State was called The Power of Cold Therapy, where I discussed the myriad benefits we can enjoy from getting into frigid environments. Turns out, humans have incredibly complex biology designed to deal with the cold, and when us modern men and women voluntarily expose ourselves, it has huge benefits for our health. Cold therapy increases brown adipose tissue (BAT,) which helps you burn fat and may lower your risk for diabetes. Cold indirectly results in higher calorie burning in rats, has been shown to increase insulin sensitivity in diabetic humans, and improve weight loss. That’s just the weight loss implications.

This is a list of other benefits of cold therapy I pulled from my article (which I strongly recommend reading in conjunction with this one):

Keenan Eriksson

Biohacking-Based Life Coach & Author. I Help My Clients Overcome Disease & Optimize Their Lives Using Biology.