
The Netherlands in 1959.
Post-war, Catholic, rebuilding. Sittard, in Limburg, was a mining town with large families and small houses. Into one of them, second of twins, Wim Hof was born on 20 April 1959.

Cold water from 3500 BCE. Hippocrates. Priessnitz and Kneipp. Pranayama and Tummo. Holotropic and box breathing. Benson and the monks. The Netherlands in 1959. And then a boy at a canal.
Egyptian, Greek and Roman cold bathing; Hippocrates prescribing cold for fatigue and inflammation.
Monastic cold; the scientific rediscovery of hydrotherapy in the 1700s.
Austrian farmer who built the first hydrotherapy system: wraps, baths, compresses.
The German priest whose Kneipp Method is still practiced in German-speaking Europe.
Ice baths in sports medicine; cold research in armies.
Tibetan monks drying wet sheets with body heat, measured.
Hundreds of techniques within Patanjali's eight limbs; kapalabhati and kumbhaka the closest cousins.
Naropa and Marpa; vase breathing; the inner fire.
Stanislav and Christina Grof; hours-long sessions for non-ordinary states.
Four-four-four-four; the SEALs' tactical calm.

Post-war, Catholic, rebuilding. Sittard, in Limburg, was a mining town with large families and small houses. Into one of them, second of twins, Wim Hof was born on 20 April 1959.
Every element of the method has an ancestor. What has no ancestor is the combination — hyperventilation before cold, empty-lung retention, a secular frame, peer-reviewed validation and a delivery system that reaches anyone with a phone. The Compared pages take each ancestor in turn.
Using cold, hard nature as his teacher.Official biography