Dementia is not a disease but a brain condition that causes problems with thinking and memory.
The study by the University of East Finland covered more than 2,000 middle-aged men for 20 years.
Scientists found that those used the sauna 4-7 times a week were 66 percent less likely to be diagnosed with dementia than those who took the bathing once a week or less.
This is the first time that a link is established between sauna use and dementia. Previous studies said that sauna reduces risk of dying and improves heart condition.
“It is known that cardiovascular health affects the brain as well,” said the study’s chief professor Jari Laukkaben. “The sense of well-being and relaxation experience during sauna-bathing may also play a role.”
Sauna is also believed to improve circulation and reduce blood pressure.
The number of people living with dementia across the globe is estimated at nearly 48 million and is on the rise. Medics advise also regular exercise, healthy and balanced diet and avoid smoking to tackle the problem.
(The research was published in the Age and Ageing journal.)