In a dry sauna, the room’s temperature reaches up to 195°F (90.5°C) with very low humidity. Water may be poured over the hot rocks to create moist, humid heat.

"The maximum time to spend in the dry sauna or steam room is about 15-20 minutes," Jeffy said. "Infrared sauna can be used longer, anywhere from 20-40 minutes." 4.

Since dry saunas are a normal part of different cultures (including Finland, Russia, Turkey, Iceland, and Japan), this is the type of sauna that’s been scientifically studied the most.

Medically reviewed by Raynetta Samuels, PT, DPT, CLT Sauna use can be beneficial before and after exercise, but when is the better time to get heated? Although both have benefits and risks, studies ...

It is possible to take on a DIY sauna project at home—particular if you’re looking to put in a dry sauna. Illustration: Ellie Schiltz/Getty Images ...