The Way of the Iceman: How the Wim Hof Method Creates Radiant Long-term Health—Using the Science and Secrets of Breath Control, Cold-Training and Commitment

by Wim Hof

Oxygen is important for releasing energy from nutrients, while carbon dioxide is important for keeping the blood vessels open. Carbon dioxide is often incorrectly seen as waste—something that must be expelled from the body. But, it is essential that your blood vessels stay open so that oxygen can reach everywhere in your body.