Contrast therapy
The hot-cold cycle: 15-20 min sauna → 1-3 min cold (60°F shower or 50°F plunge) → 5-10 min rest, repeat 2-3x.
The traditional Finnish protocol cycles between hot sauna and cold immersion. Research supports this combination as more beneficial than sauna alone.
The basic contrast cycle
- Sauna for 15 to 20 minutes
- Cool immersion: cold shower (60°F / 15°C or below), cold plunge (50°F / 10°C or below), lake or river dip, or rolling in snow
- Stay in the cold for 1 to 3 minutes (or as long as comfortable)
- Rest for 5 to 10 minutes outside the sauna
- Repeat the cycle 2 to 3 times
- What the cold should feel like
- The first 30 seconds in cold water feel intense, then settle. If you can't tolerate the cold for at least 60 seconds, the water is too cold for you right now. Start with a less extreme temperature and work toward colder over weeks.
- Setting up contrast at home
- A cold plunge, cold shower, or hose can all work. Cold plunges are the gold standard for consistent temperatures. Cold showers work if that's what you have. Some owners keep an outdoor cold tub or barrel filled with ice water near the sauna.