The Science of Contrast Therapy: Why Hot + Cold Works

By Emily, Founder of Wild Sauna

We get asked the question: “I know this is supposed to be good for me, but how do sauna and then plunge actually benefit our health?” The answer is contrast therapy –  a practice used worldwide, now backed by science.

Sauna Benefits (Heat)

  • Improves circulation and lowers blood pressure.
  • Reduces cardiovascular risk.
  • Linked with lower dementia rates (Laukkanen et al., 2017).

Cold Plunge Benefits (Cold)

  • Reduces inflammation and speeds recovery.
  • Sharpens focus and mood with dopamine boosts.
  • Trains mental resilience.

Why Together Works Best

Sauna relaxes; plunge awakens. The cycle builds adaptability, known as hormesis. Your nervous system learns balance, leaving you refreshed and alive.

At Wild Sauna in Hampshire, guests describe it as a “reset” – tingling skin, clear mind, light spirit. That’s why hot and cold therapy has endured for centuries.

Soup & Sauna: Book A Communal Sauna and Pay For Your Soup On Arrival