Saunas, Infrared or traditional?

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The first study was an observational study of 2,315 healthy Finnish men (age 42 to 60) who were followed up for an average of 20.7 years [2]. Compared to people who used the sauna once per week, those who used it 2-3 times per week and 4-7 times per week had a 21% and 66% lower risk for dementia, respectively. For Alzheimer’s disease specifically, the risk was 20% and 65% lower, respectively

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The second study was a larger, longer-term study that included both men and women from Finland. In this study, there were 13,994 men and women (age 30 to 69) who were free of dementia at the time of enrollment and were followed for up to 39 years [3]. Compared to people who used the sauna 0-4 times per month, those who used it 9-12 times per month had a 21% lower risk of dementia after controlling for sociodemographic, lifestyle, and metabolic risk factors of dementia.

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