Bill Nye the Sauna Guy
Let's talk sauna science!!
Some things in life are just good for you like eating vegetables, calling your mom, taking a deep breath. Sauna’s one of those things. You sit in a warm room, sweat a little (or a lot), and somehow walk out feeling better than when you went in. But there’s more to it than just a good sweat.
The Science
Your heart loves it. Heat exposure increases heart rate and causes blood vessels to dilate, improving circulation and lowering blood pressure over time. Regular sauna use has been linked to a reduced risk of cardiovascular disease.
Your brain gets a boost. Increased blood flow to the brain and the release of endorphins support mood regulation and cognitive function. Long-term studies associate frequent sauna sessions with a significantly lower risk of dementia.
Recovery for your muscles. Elevated body temperature relaxes muscles, reduces inflammation, and enhances nutrient delivery to tissues, speeding recovery. Pairing heat with cold immersion creates a powerful stimulus for muscle repair.
Reduced stress and better sleep. Heat helps activate the parasympathetic (“rest and digest”) nervous system, lowering stress hormones. The subsequent cooling period helps regulate circadian rhythms and promotes deeper, more restorative sleep.
Gives you an immunity boost. The mild thermal stress of sauna triggers the production of heat shock proteins, which aid cellular repair and enhance immune function. Improved circulation also supports skin health, creating that sauna-afterglow.
Why You Should Give a F*** About Sauna Even in the Summer
We get it, when it’s 27°C outside and you’re already sweating outside, it's hard to motivate yourself to go inside for a sauna. But here’s the thing: sauna works best when it's repeated.
A massive 20-year Finnish study found that people who used the sauna 4–7 times a week had about half the risk of dying from heart-related causes compared to once-a-week users. Same sauna, just more often.
The magic comes from consistent cardiovascular stress and recovery. The heat raises your heart rate, dilates your blood vessels, and over time, makes your whole system more resilient. Skip the summer and you lose the compounding effect.
So yes, it’s worth showing up now because the benefits are building with every single session.
