Researchers have found that regular hot tub bathing is linked to a lower risk of mortality from heart disease and stroke. According to the study the higher the dose, the better it seems to be for cardiovascular health, with a daily hot bath seemingly more protective than a once or twice weekly one.
"We found that frequent tub bathing was signiﬁ cantly associated with a lower risk of hypertension, suggesting that a beneﬁ cial effect of tub bathing on risk of (cardiovascular disease) may in part be due to a reduced risk of developing hypertension," said the study researchers in Japan.
Having a bath is associated with good sleep quality and better self rated health but it's not clear what its long term impact might be on cardiovascular disease risk, including heart attack, sudden cardiac death and stroke. To explore this, the researchers drew on participants a population-based tracking study of more than 61,000 middle-aged adults (45 to 59 years).
Each participant was monitored until death or completion of the study at the end of December 2009, whichever came ﬁ rst, with the ﬁ nal analysis based on 30,076 people. Analysis of the data showed that compared with a once or twice weekly bath or no bath at all, a daily hot bath was associated with a 28 percent lower overall risk of cardiovascular disease and a 26 percent lower overall risk of stroke.