The Claim: Sitting in a Sauna Can Relieve Cold Symptoms
February 3, 2009
By ANAHAD O’CONNOR
THE FACTS
Scientists recently confirmed the age-old notion that hot liquids can relieve some cold and flu symptoms. But what about a dose of heat on a much larger scale — say, in a sauna?
With temperatures of 176 Fahrenheit or greater, saunas have been recommended for arthritis, asthma and chronic fatigue, among other things, since they were used by nomads in Finland centuries ago. Some reputed benefits have not been examined, but there is evidence that saunas may speed recovery from colds and reduce their occurrence.
Some researchers suspect sauna heat reduces symptoms because it improves drainage, while others speculate that the high temperatures help weaken cold and flu viruses. Why this might prevent sickness in the first place, however, is unclear. But research suggests an effect.
In one study by Austrian researchers, for example, a group of 50 adults were split into two groups and tracked for six months. One group was instructed to use saunas regularly; the other group abstained. At the end of the study the sauna group had contracted fewer colds.
“This was found particularly during the last three months of the study period, when the incidence was roughly halved compared to controls,” the scientists wrote.
Other studies have found similar results. But doctors caution that saunas can be hazardous to those with heart or circulatory problems.
THE BOTTOM LINE
There is evidence sauna use might reduce or prevent cold symptoms.
scitimes@nytimes.com
