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Not yet, you recommend?

Yes times 1000. Very healthy and also can be naturally psychedelic. Amazing shit :D You can tap into your own autonomous nervous system which was perviously claimed "impossible"

I started the breathing technique already, thanks for the amazing tip, wim hof got a new fan lol :D

Awesooome! Enjoy! And gradually start the cold showers and you will go to another level :D Have fun