Thanks for this. My pensioner mother came back from the doctors yesterday with a chest infection, on top of this she has mild bronchitis. I've just sent her this exercises as I'm hoping it might improve her lung health. Although i did send her this one which is a bit easier: https://youtu.be/0BNejY1e9ik But thanks for posting it, I never knew about this method. Just tried it myself and it rocks.

Wow, I can't thank you enough for posting this. I've been struggling with hypertension and anxiety for a very long time. I just tried the beginner exercise and couldn't believe the effect.

Not only could I hold my breath for longer then I was ever able to on my first try but also I felt relaxed and happy at the end of the exercise.

Thank you!!!

Wim-Hof almost killed me (that exact video). Please don't try it until you are in a state you can comfortably sustain 1+ minute lack of oxygen.