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.

Do saunas help clear lungs?

Saunas can improve respiratory function

Sauna bathing has been shown to enhance lung capacity and function, potentially resulting in improved breathing for people with respiratory conditions such as asthma and bronchitis, according to the paper.

Can you sweat out a cough?

There is no scientific evidence to suggest that you can sweat out a cold and, in fact, it may even prolong your illness. Here's what you need to know about why sweating won't help once you're sick and how you can prevent illness in the future.