Sauna is one of the most studied lifestyle interventions in modern health research. Long-term population studies have linked regular sauna use with significantly lower rates of cardiovascular disease and all-cause mortality — in some groups, approaching a 50% reduction compared with minimal use.

So yes: heat matters.

But most sauna conversation stops at outcomes. It rarely asks the more useful question:

How does the brain experience heat — and what changes when we stop heating the control centre?

Unlike traditional saunas, which heat the air around you, infrared saunas use specific wavelengths of light to warm the body directly — triggering a wide range of physiological benefits.

Infrared energy gently penetrates the skin and tissues, stimulating cellular repair, improving circulation and supporting the body’s natural recovery systems. This makes infrared sauna particularly effective for stress, pain, fatigue, inflammation and overall wellbeing.

Most people don’t come to wellness spaces when they’re feeling their best. They come when they’re tired, run down, overwhelmed, in pain, hormonally off-balance, or simply stretched too thin.

In those moments, even the calmest shared environment can feel like work.

Being around other people — however quietly — still asks something of you. You’re aware of who’s nearby. You notice movement, sound, timing. You manage how visible you are. None of this is dramatic or anxious. It’s just how humans work.

That background effort keeps the body slightly switched on. And a body that’s still “on” doesn’t recover particularly well.

At Solāis, we work from a simple truth:

Nothing you feel is random.

Your sleep, your stress levels, your tension, your mood, your hormones, your circulation, your recovery, your digestion, your pain… they are all connected. They influence each other. They speak to each other. And they respond to warmth, light, environment, rest and regulation.