Wim Hoff | Golf Monthly

Yoga and associated controlled breathing techniques are well known to be good for reduced stress, increased energy and better sleep, which are all completely tied up with one another and can contribute to a healthy immune system.
Not sure what the Wim Hof method involves other than applying breathing techniques to take your mind off the stupid physical challenge you've embarked on.
I don't see what breathing has to do with willpower. Oxygen ain't Hobnobs.

Having said that, we accidentally caught the last half of the program last night and it was very entertaining.