[new_guy]

Wim Hof is a Western bastardization of a very small subset of Pranayama, it's up there with people who think Yoga is all about stretching.

Learning from the original source is always better and will yield way more benefits including 'psychic' abilities if you're that way inclined http://www.yogebooks.com/english/atkinson/1903sciencebreath....

[albanberg]

From the Viniyoga perspective, this book is incorrect in terms of the complete breath.