Start in 4 steps
- Sign up now (Nederlands? Schrijf je in op de Nederlandse pagina)
- Receive instructions
- Tell all your friends
- Start with many others 01-01-21
- Share your experience with us



Why join
Experience the benefits of cold showering: of creating an easy and effective way of maintaining a healthy body and mind in the comfort of your own home.
✔ Stronger immune system
✔ Boosting your energy levels
✔ Better circulation and flexible healthy veins
✔ No cold hands and feet anymore
✔ Increased metabolism, more easy to loose weight
✔ Natural health glow for your skin and hair
✔ Increase mental resilience
✔ Better physical performance and faster recovery
Contribute to the international survey. This will help us know more about the effects of a cold shower on health. And to see the effects of cold showers on the impact of yearly influenza, on a global scale.


30 days Cool Challenge
A daily cold shower leads to incredible results. Want to experience the benefits of a cold shower yourself? Join the Cool Challenge: 30 days of finishing your showers cold. You can start every month. On January 1st, the special new years edition takes off. Thousands of people already preceded you. Because it works. And because it is cool!
You will receive a weekly news letter with funny anecdotes, insights, and nice things to know about taking cold showers.
Click image to download full-sized PDF-file
Scientific evidence
3018 people participated in the Cool Challenge of 2015, a research of the Academic Medical Center of Amsterdam. Participants took a (hot to-) cold shower for 0, 30, 60 or 90 seconds. The spectacular results were published in PLOS ONE in october 2016:
- 29 percent less sickness absence for the groups taking cold showers
- increase in perceived energy levels
- No difference if 30, 60 or 90 seconds. The positive effect started at 30 seconds
- 79% completed the daily cold shower for 30 days
- More than 90% wanted to continue the routine of taking a cold shower
- More than 60% actually kept this routine of taking a cold shower after three months
More info
Wim Hof Methode World tour 2017
Testimonials After workshop
