Wim Hof Method revealed using cold showers..

The Wim Hof Method is similar to Tummo (inner heat) Meditation and Pranayama (yogic breathing). Yet it is something else entirely. While Wim has read a lot of books on yoga and meditation for many years, this technique primordially comes from what he terms ‘cold hard nature’. By subjecting himself to the bitter conditions of nature, he learned to withstand the extreme forces of cold, heat and fear. If you learn this method or technique correctly, it will empower you to do to the same.
The first part is a breathing exercise which can be likened to controlled hyperventilation. This is, of course, an oxymoron. Hyperventilation is something which happens involuntarily. But just imagine the breathing part, without any of stress triggers that normally cause this way of breathing. The image will consist of rapid breathing that makes one languid, invigorates one, makes one high on oxygen.