In a scientific experiment “Iceman” Wim Hof suggests that he can influence his autonomic nervous system and immune response through meditation and breathing techniques.

The researchers found out that Wim Hof is able display control over his immune system, which was not thought possible. You can find more information here: but essentially in the study twelve healthy volunteers were trained in the Wim Hof Method and twelve others were part of a control group and were not trained. They all got an injection of an endotoxin from the Escherichia coli bacteria. In a normal situation, the body responds quite strongly, but the trained research subjects could keep the body’s reaction at a minimal and only really experienced a small headache compared to their untrained peers.

So, I got curious and started the Wim Hof program about 8 weeks ago (you can just download an app or do the more extensive online course). At first I was sceptic but then I read this book by Scott Carney, a New York journalist, who has debunked a lot of “super-human” claims. It is still early days but so far, the results have been impressive. I have more than doubled the amount of push ups and my personal best now stands at 80. I also have exposed myself to 10 minutes long ice cold showers and managed to jump into the local river in Munich (Isar) at around 0–1 degrees (Celsius) without any major problems.