Sauna and cold plunge
1
Morning
Alternating heat exposure in a sauna with cold-water immersion, commonly used for recovery, circulation and building stress resilience. Timing and temperatures vary.
Quick facts
- 1Cold-water immersion triggers a large, well-documented spike in norepinephrine, the alertness chemistry behind the post-plunge 'high'.
- 2Common practice sits between 2 and 10 minutes in water around 5–15°C (40–60°F); colder isn't considered better by most practitioners.
- 3Many athletes time plunges away from strength training, as some studies suggest immediate post-lift cold may blunt muscle adaptation.
- 4The gasp reflex in cold water is real, practitioners enter gradually and never plunge alone in open water.
Why people do it
Alertness and mood: Cold water triggers a large norepinephrine release. The post-plunge clarity many describe is the best-supported effect.
Stress resilience: Voluntarily doing a hard thing every morning is half the point: practitioners report the discomfort tolerance carries into the rest of the day.
Recovery ritual: Athletes have used cold immersion for decades to feel fresher between sessions, though the science on performance recovery is mixed.
Good to know
Enter gradually: The gasp reflex in cold water is real. Practitioners get in slowly and keep their breathing controlled.
Timing around training: Some studies suggest cold immediately after strength work may blunt muscle adaptation, so many separate the two by several hours.
Never alone in open water: Cold shock plus open water is a genuinely dangerous combination.
Common questions
How cold and how long?+
Most practice falls between 2 and 10 minutes at 5 to 15°C (40 to 60°F). Colder is not considered better; controlled breathing is the marker of a good session.
Are cold showers enough?+
They are the standard entry point, and a 2016 Dutch trial on cold showers found a 29% reduction in self-reported sick days. Most of the subjective benefits overlap.
Should I dunk my head?+
There is no research showing added benefit, and people prone to ear problems usually keep their head above water.
Takeaway
The strongest case for cold water is how it makes the next few hours feel: alert, calm and accomplished. Treat it as a daily mood tool, start with cold showers, and respect the safety basics.
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These habits are compiled from public statements and are not medical advice or endorsed by Joe Rogan. Consult a qualified professional before changing your routine, supplements, or therapies.