“Dramatic reductions in systolic blood pressure from regular sessions of 15-30 minutes in radiant-heat and FIR saunas have been reported.”

“Systolic blood pressure decreased by 6.4 mm Hg”

“Repeated sauna treatment improves impaired vascular endothelial function in the setting of coronary risk factors, suggesting a therapeutic role for sauna treatment in patients with risk factors for atherosclerosis.”

“The IR therapy unit used was demonstrated to be effective in reducing chronic low back pain, and no adverse effects were observed.”

“These results suggest that a combination of multidisciplinary treatment and repeated thermal therapy may be a promising method for treatment of chronic pain.”

“…may have a stimulatory effect on the proliferation of human fibroblasts and collagen synthesis during wound healing.”

“A negative mood, including anxiety, depression and fatigue, and the performance status significantly improved after [far-infrared] therapy.”

“Those with back/musculoskeletal pain and mental issues cited the greatest improvements in their conditions with sauna-bathing. Of all respondents, 83.5% reported sleep benefits after sauna use.”

“Participants who used an infrared sauna 3 times a week for 30 minutes –  dropped an average of 4% body fat over a four-month period.”

“There was a trend toward decreased waist circumference.”

“…may be an effective and safe non-ablative remodeling method, and may also be useful in the treatment of photo-aged skin.”

“…may have beneficial effects on skin texture and wrinkles by increasing collagen and elastin contents from the stimulated fibroblasts.”

“We found that the content of collagen and elastin produced by the fibroblasts increased after infrared…”

“Perceived fatigue significantly decreased after [infrared] therapy … These findings suggest that Waon therapy (thermal therapy using far-infrared sauna) may be a useful and safe treatment for CFS (Chronic Fatigue Syndrome).”

“This group of cross-fit athletes experienced improvements in self-reported sleep and reduced napping time after exposure to infrared energy during the night.”

“The psychological impact of sauna bathing may be due to a combination of factors that include release of endorphins and other opioid-like peptides such as dynorphins [81, 92], forced mindfulness, psychological stress reduction, relaxation, improved sleep, time out from busy life schedules, placebo effects, and other aspects of individual psychological and social interactions that likely occur around frequent sauna activity.”

“Many reports have indicated that IR radiation may have a stimulatory effect on the proliferation of human fibroblasts and collagen synthesis during wound healing.”

“Frequent sauna baths may be associated with a reduced risk of acute and chronic respiratory conditions.”