People have used steam rooms for two thousand years. Although sauna originated in Finland, it is very popular all over the world. It's winter, and an American health and medical website lists the health benefits of sauna. Sauna is a process of treating the body with steam in a closed room. Usually, the temperature of sauna room can reach above 60℃. It uses repeated stimulation of cold and heat to make the whole body dry, evaporate and wash, so that blood vessels expand and contract repeatedly, rise and enhance the elasticity of blood vessels, thus achieving the effect of preventing arteriosclerosis. In modern Finland, nearly one-third of adults often take saunas. Sauna bath has seven benefits to health.

What are the benefits of sauna for health? First of all, lowering blood pressure and frequent sauna are helpful to prevent hypertension. Hypertension is an important risk factor for heart disease. Researchers at the University of Eastern Finland found that men who take a sauna at least four times a week have almost half the risk of heart disease compared with their peers who only take a sauna once a week.

In order to prevent dementia, according to a study published in the Journal of Aging and Aging, the more times volunteers take a sauna, the lower their risk of developing Alzheimer's disease. Participants were divided into three groups: those who steamed four or seven times a week, those who steamed two or three times a week and those who steamed only once a week. Thirdly, researchers from Longevity University in East Finland tracked 2,300 middle-aged men, who spent an average of 20 years in the sauna. They stayed in a sauna at 60 degrees Celsius for an average of 14 minutes.

Lowering cholesterol, healthy young male volunteers took 10 sauna bath within three weeks, and their blood total cholesterol and low density lipoprotein (LDL) levels decreased significantly, and their cholesterol levels gradually returned to normal. Prevention of Pneumonia A study published in the European Journal of Epidemiology found that people who regularly take a sauna have a 27% lower risk of pneumonia than those who rarely or never take a sauna. People who take a sauna at least four times a week have a 42% lower risk of this potentially fatal disease. Regular use of sauna can also reduce their risk of asthma and other chest problems.