You get in a sauna until you're good and cooked, then you get into water cold enough to make you reconsider your life choices. Back and forth. On purpose. That's the whole treatment.

Sounds like something a Marine would invent to punish people. Dr. Susanna Søberg, who's spent 15+ years studying what heat and cold actually do to the human body, would tell you it's the opposite of punishment — it's a negotiation. Heat opens things up: blood flow, heat shock proteins, tissue repair. Cold slams things shut: inflammation down, norepinephrine up, your nervous system suddenly very alert and very online. Do both, back to back, and you get an effect neither one pulls off alone. Søberg's research says you don't even need much of it — just minutes of real cold, minutes of real heat, done consistently.

That's Contrast Forge. A private sauna and a Dreampod Ice Bath, same room, one booking. Heat until your guard drops, cold until your nervous system remembers it has a job. No influencer breathing exercises required — just repeated, deliberate discomfort followed by relief, because that's the entire mechanism.