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for sure

you a hoffer also?

No, but thanks to your post, and a little research on the Internet and the steps they describe seem simple, how difficult is to take the ice tubs huy the cold freeze your spirit

I would suggest starting with cold showers first and leave out the head.

30 seconds are fine to start. For myself it feels way easier after I have done the breathing.

Beware dont do the breathing while in water.

There is a great documentary on youtube from vice about wim hof. Also some videos where he is guiding people through the breathing.