“It was found that repeated sauna therapy (60°C for 15 min) improved hemodynamic parameters, clinical symptoms, cardiac function, and vascular endothelial function in patients with congestive heart failure. Sauna therapy also improved endothelial dysfunction in these subjects [with hypertension, hyperlipidemia, diabetes mellitus, obesity, smokers], suggesting a preventative role for atherosclerosis. In obese patients, the body weight and body fat significantly decreased after 2 weeks of sauna therapy without increase of plasma ghrelin concentrations.” – “Clinical Implications of Thermal Therapy in Lifestyle-Related Diseases.” Biro, Sadatoshi et al. Experimental Biology and Medicine, Volume 288, November 1, 2003.
“Participants who used the sauna regularly had a greater loss in body fat. Participants measured up to a 4% drop in body fat over the four months. The change in body fat was confirmed by measurements of serum glucose levels.” – “Study to Measure the Effects of Sauna use on Body Temperature, Physiologic Measures and Long-term Body Weight Changes.” McLeod, Kenneth. Binghamton University, SUNY. https://infraredsauna.com/weightlossstudy.pdf