History of cold therapy.

Hippocrates — widely regarded as the father of medicine — wrote about the therapeutic use of cold water in On Airs, Waters, Places and other works. He used cold water for pain reduction, swelling control, and as a tonic for general health.

His framework was practical and observational: cold water reduces swelling, increases vitality, and shifts the body toward what he called the “sthenic” (strong, active) state. The mechanistic explanation came two and a half thousand years later, but the empirical observation was correct.

Other ancient civilisations had parallel practices — the Romans built elaborate frigidaria as part of their bath complexes, alternating hot and cold immersion; the Spartans cold-bathed newborns to test their hardiness; Norse and Slavic peoples ice-swam as part of cultural and spiritual practice. Cold water as therapeutic and ritual practice predates written history.

Sebastian Kneipp — a 19th-century Bavarian priest with no medical training — revived European cold-water therapy after self-treating his own tuberculosis with cold-water immersion in the Danube. His patients reported dramatic improvements; his methods spread across Europe.

Kneipp's “Five Pillars” (hydrotherapy, herbal medicine, movement, nutrition, balance) anticipated modern integrative medicine by a century. His cold-water protocols — specific durations, water temperatures, body areas — were the first formal European framework for therapeutic cold exposure.

Kneipp clinics still operate in German-speaking Europe, and Kneipp-branded body care products are sold internationally. His legacy is the bridge between ancient bathing traditions and modern hydrotherapy.

Wim Hof — “The Iceman” — brought cold exposure into mainstream global awareness through a series of increasingly public extreme cold demonstrations: running half-marathons barefoot in snow, climbing high-altitude peaks in shorts, sitting submerged in ice for record durations. He combined the cold exposure with a structured hyperventilatory breathwork practice and an evangelical mindset framework.

The methodology moved from fringe to scientifically interesting with Kox et al. (2014, PNAS), which demonstrated WHM-trained subjects could voluntarily modulate their inflammatory response to bacterial endotoxin. The trial brought academic credibility to a practice that had been written off as performance art.

The Wim Hof Method became one of the most globally recognised wellness brands of the 2010s. Whatever you think of the founder's aesthetic, his cultural contribution was making mainstream the idea that cold exposure could be a deliberate practice rather than something endured. Without Wim, modern cold therapy as a category probably doesn't exist at scale.

Cold-water immersion is now a mainstream wellness category in 2026, with dedicated facilities (R1SE among them) opening across major cities. Podcast hosts (Huberman, Rogan, Rhonda Patrick) regularly discuss the protocols. Athletes openly invest in cold practice. Long-form RCT trials are running on long-COVID, autoimmune conditions, and ADHD applications.

The category sits at an interesting inflection: rigorous enough that mainstream medical voices take it seriously, accessible enough that ordinary people are integrating it into daily routines, scientifically active enough that new findings emerge regularly. R1SE Kelham opened with cold as a core service precisely because the moment for the category is now.

Where the next decade takes it: tracker-integrated dose tracking (Apple Health, COLMI ring integration), expanded clinical applications (depression, ADHD, autoimmune protocols), home-cold accessibility growth, and continued tension between the genuine evidence and overstated marketing. The science gets richer; the marketplace gets noisier.