Hot Takes: What Science Really Says About Saunas and Brain Health

Sweating it out might feel like self-care — and according to science, it could be doing your brain a favour too.

According to a large Finnish study published in the journal Age and Ageing and often referenced in discussions by the Alzheimer’s Association, people who used a traditional sauna four to seven times a week had a lower risk of developing dementia and Alzheimer’s disease compared to occasional users.

So what’s behind that?According to cardiovascular researchers — and echoed by the American Heart Association — sauna use can support circulation, blood pressure, muscle recovery and heart health, all of which are closely linked to brain health. There’s also evidence that heat exposure activates heat shock proteins, which help cells cope with stress.

Now, let’s be honest.Sauna four to seven times a week sounds… wildly unrealistic for most people.

But modern life is catching up with the science. Urban sauna and contrast-therapy spaces — like Othership and similar wellness studios — are making heat therapy far more accessible than it used to be.

Important note (according to researchers and public health organizations): these findings show association, not prevention. Saunas aren’t a cure.

All that said, heat isn’t for everyone.Some people simply don’t tolerate high temperatures well — and that’s okay.

The good news? You don’t need a sauna to support muscle recovery. Registered Massage Therapy (RMT) offers many of the same benefits — improved circulation, reduced muscle tension, and nervous system relaxation — without the heat.

Different bodies, different preferences.