High blood pressure is a common condition in the UK, with more than one in four people living with it. It is an insidious condition because it tends to creep up announced and only reveals itself once it is serious. Fortunately, as it is strongly linked to lifestyle factors, certain tweaks can significantly reduce a person’s risk of developing the condition. It may come as a surprise that a popular form of relaxation can reduce the risk.
Frequent sauna bathing reduces the risk of sudden cardiac death
Frequent sauna bathing reduces the risk of elevated blood pressure, according to an extensive follow-up population-based study carried out at the University of Eastern Finland.
The study, published in the American Journal of Hypertension, found that the risk of developing elevated blood pressure was nearly 50 per cent lower among men who had a sauna four to seven times a week compared to men who had a sauna only once a week.
The same researchers have previously shown that frequent sauna bathing reduces the risk of sudden cardiac death and cardiovascular and all-cause mortality.
Elevated blood pressure is documented to be one of the most important risk factors of cardiovascular diseases.
According to the research group, underlying protective mechanisms may include the beneficial effects of regular sauna bathing on blood pressure.
The Kuopio Ischaemic Heart Disease Risk Factor Study (KIHD) involved 1,621 middle-aged men living in the eastern part of Finland.
Study participants without elevated blood pressure of over 140/90 mmHg or with diagnosed hypertension at the study baseline were included in this long-term follow-up study.
Based on their sauna bathing habits, men were divided into three sauna frequency groups: those taking a sauna once a week, two to three times a week, or four to seven times a week.
During an average follow-up of 22 years, 15.5 per cent of the men developed clinically defined hypertension.
The risk of hypertension was 24 per cent decreased among men with a sauna frequency of two to three times a week, and 46 per cent lowered among men who had a sauna four to seven times a week.
As the report explained, sauna bathing may decrease systemic blood pressure through different biological mechanisms.
During sauna bathing, the body temperature may rise up to 2 °C degrees, causing vessels vasodilation.
Regular sauna bathing improves endothelial function, i.e. the function of the inside layer of blood vessels, which has beneficial effects on systemic blood pressure.
Sweating, in turn, removes fluid from the body, which is a contributing factor to decreased blood pressure levels.
Additionally, sauna bathing may also lower systemic blood pressure due to overall relaxation of the body and mind.
A recent analysis of the same study also revealed that those taking a sauna frequently have a lower risk of pulmonary diseases.
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