To Sauna, or Not to Sauna?

It seems like everywhere you turn there is a new "Sauna" business popping up or a different influencer on social media promoting their sauna experiences. But did you know that according to NIH, spending time in the sauna has tons of health benefits? 

Turn Up the Heat!

There’s something powerful about sitting still in the heat — not just for the mind, but for the body at a cellular level. When you step into a sauna, your core temperature rises, your heart rate increases, and your blood vessels dilate, improving circulation and oxygen delivery throughout the body. This mild, controlled stress response — known as hyperthermic conditioning — triggers the release of heat shock proteins (HSPs), which protect and repair damaged cells, reduce inflammation, and enhance mitochondrial efficiency. 

In other words, you’re training your cells to perform better, recover faster, and resist stress — a workout for your body’s inner systems. 

Regular sauna use has been shown to improve:

• cardiovascular health

• lower blood pressure

• increase growth hormone production

• support longevity by promoting cellular resilience

  
  

For active individuals and athletes, sauna sessions can be a game-changer. Regular heat exposure increases plasma volume, helping your body regulate temperature more efficiently during workouts — a key advantage for endurance training or recovery between intense sessions. It can also aid in detoxification by stimulating sweat glands, flushing out heavy metals and waste products while promoting muscle relaxation and joint mobility. Think of it as another form of “active recovery” that supports the same systems you’re targeting in the gym: circulation, muscle repair, and energy metabolism. Just like exercise, consistent exposure builds adaptation over time — meaning, the more you use it safely, the more your body benefits.

That said, the sauna isn’t for everyone, such as individuals with:

• uncontrolled high blood pressure

• heart disease

• respiratory conditions 

  
  

Pregnant women, anyone with open wounds or active infections, and those prone to dizziness, dehydration, or fainting should also avoid or limit sauna exposure.

As fitness professionals, it’s our responsibility to educate clients that “sweating it out” isn’t a shortcut to fat loss — it’s a tool for recovery, resilience, and overall health when used wisely. Encourage your clients to hydrate well, limit sessions to 15–20 minutes and listen to their bodies. 

The sauna can’t replace hard work — but it can help the body adapt to it more efficiently.

Read more about the benefits of sauna use at:

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5941775/

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3418130/