The Icewomen.
Isabelle and Laura Hof lead the women's line of the method — the IceWoman Challenge, the Secrets of the Ice Women book, and a podcast — bringing the breath and the cold to hormonal cycles, motherhood and menopause.
Two daughters, one line of the method.
Isabelle ("Isa") and Laura grew up in the same cold house as Enahm. Where their father spoke to the general body, they speak to the female body specifically.
Secrets of the Ice Women.
Published by HarperCollins in 2025 in print and e-book, the book adapts the three pillars to women's physiology and lives. It sits on the Books page and in the Shop.
The IceWoman Challenge.
A guided challenge inside the app, alongside the Twenty-Day Cold Shower Challenge.
The science for women.
A 2024 randomized trial at UCSF with eighty-four midlife women found the method and a gentle control both reduced depressive symptoms, and that the method uniquely reduced rumination after stress. The study page grades it honestly.
Feeling is understanding.Wim Hof