Webacute (≤3 days) and chronic (>1 week) sauna bathing has shown various health benefits such as improving respiratory function [29], markers of cardiovascular. Webresearch shows that sauna bathing may be able to help lower your risk of heart disease. One study followed 2,300 sauna bathers for 20 years and found that the. Webresearch shows that a sauna — a small room typically filled with dry heat — may help reduce stress, improve heart health, aid in pain relief and soothe sore muscles.