Belonging is part of the dose
New UK research suggests the shared ritual of sauna matters as much as the heat. Why the people you bathe with are part of the benefit.
Who should not use a sauna, and how older adults use one well
The safety question, answered first. Who should avoid sauna, what raises risk, and simple habits for bathing well after 50.
We sell saunas. The most useful thing we can publish is who should not use one.
Who should not use a sauna
A widely cited review in the American Journal of Medicine lists three contraindications:
- Unstable angina
- A recent heart attack
- Severe aortic stenosis
The same review notes that sauna is safe for most people with stable angina or an older heart attack. That is a conversation to have with your cardiologist, not a green light to self-assess.
Other sensible times to skip a session: when you have a fever or an acute infection, or when you feel unwell.
What raises risk
Alcohol. The review is direct: alcohol during sauna raises the risk of low blood pressure, heart rhythm problems and sudden death, and should be avoided. A 2025 review cites Finnish data on sudden deaths within 24 hours of sauna, with around 30 per cent linked to alcohol.
Standing up too fast. Heat widens blood vessels. A 2025 review flags fainting risk after cooling, especially in older people and those on blood pressure medicines or diuretics.
How to bathe well after 50
- Start short. Ten minutes is plenty while you learn how your body responds.
- Hydrate before and after.
- Sit up for a minute before you stand. Hold the rail.
- Cool down gradually rather than jumping straight into very cold water.
- Bathe with someone else in the house, especially when you are new to it.
- No alcohol before or during.
Talk to us
If you are unsure whether heat suits you, speak with your GP first. When you are ready, we are happy to talk through heater type, temperature range and layout on a call.
Free: The Norge Longevity Guide. Heat, cold and light after 50, with the evidence and the safety rules in one place. Get the guide.
Sources
- Hannuksela and Ellahham, Benefits and risks of sauna bathing, American Journal of Medicine, 2001
- Finnish sauna bathing in cardiovascular health: safety considerations for at-risk populations, 2025
- Sauna use as a novel management approach for cardiovascular health, Frontiers in Cardiovascular Medicine, 2025
This article is general information, not medical advice. If you have a heart condition, low blood pressure or are pregnant, speak with your GP before using heat or cold.
More from The Research
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