The Synapse by The Cognition Dietitian

The Synapse by The Cognition Dietitian

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The Synapse by The Cognition Dietitian
The Synapse by The Cognition Dietitian
Is Heat Healing, Or Just Hype?

Is Heat Healing, Or Just Hype?

What we know about sauna and brain health

Barbie Boules, RDN's avatar
Barbie Boules, RDN
Jul 18, 2025
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The Synapse by The Cognition Dietitian
The Synapse by The Cognition Dietitian
Is Heat Healing, Or Just Hype?
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TL;DR

Large-scale observational studies suggest that regular use of traditional Finnish saunas – dry heat at 80–99°C (176–210°F) – is linked to a lower risk of dementia and cardiovascular death. Infrared saunas, despite their popularity, haven’t been studied for cognitive outcomes in humans. While the evidence isn’t conclusive, dry sauna may be a safe and worthwhile addition to a broader brain health routine – one that’s grounded in daily movement, restorative sleep, and a nutrient-dense diet.

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