29 Aug
Workshop Wim Hof Amsterdam
4 Sep
Workshop Wim Hof Amsterdam
11 Sep
Workshop Wim Hof Amsterdam

Science stands for a mystery

According to Maria Hopman of the UMC St Radboud Nijmegen, the things that Wim is capable of are scientifically viewed as impossible. Maria Hopman did a cold physiological experiment on Wim and examined him while he stood a cylinder filled with 700 kilograms ice cubes. An untrained person would likely die from hypothermia; Wim, however, has never had that risk. His body temperature remained constant around 37 degrees Celsius; Hopman expected his temperature to drop over. She thinks it´s possible that Wim can influence his autonomic nervous system, which regulates, among other things, the heart rate, breathing and blood circulation. Yet, her head is filled with many questions like: How can a man raise his metabolism twice as high without any increase of heart rate? How is it possible that Wim does not shiver while this would be the normal reaction of a body exposed it to extreme cold? Hopman is continuing her investigation on Wim to find the answers to her questions.

Iceman in worldwide interest of science

Maria Hopman is one of the many scientists who have examined Wim in recent years. Not only in the Netherlands but also abroad, Wim caught the attention of scientists around the world with his exceptional performance.

They examined him in different ways.

  • Endo toxic research conducted by Prof. Peter Pickkers, UMC St Radboud (amazing results, influence on the autonomic nervous system and imune system!)
  • Blood tests during meditation and breathing exercises in the UMC St Radboud Nijmegen led by Prof. Netea and Prof. Stick
  • Cold physiological research TNO led by Prof. Daanen
  • Cold physiological research in Oulu (Finland) led by Prof. Oksa
  • Blood tests during meditation and breathing exercises in New York led by Dr. Kevin Tracey
  • Ten records exposing to extreme cold led by different doctors and physiologists.
  • Brown adipose research

The Wim Hof Method has scientifically proven to influence the Autonomic Nervous System and the innate immune response

Different publications of research:

Voluntary activation of the sympathetic nervous system and attenuation of the innate immune
response in humans Download

The influence of concentration meditation on autonomic nervous system and the innate immune response Download

Can meditation influence the Autonomic Nervous System Download

Read more


Innerfire App - Learn the Wim Hof Method

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Workshop Brighton UK

Sunday 29th March 2015, 10:30am – 3:00pm

WHM Publication in PNAS and Nature

Read the article


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