Temperature (Austin, Tex.)2025n = 31 (10 White-European, 10 Black-African, 11 South-Asian)
RCTHuman
This study looked at how the smallest blood vessels in the skin respond to a hot bath, and whether that differs by ethnicity. Thirty-one healthy young men (10 White-European, 10…
Scientific reports2024n = 80
RCTHuman
This study tested whether making training harder by adding heat, thin air, or both improves short-burst cycling power. Eighty untrained young men were split into five groups of 16: no…
BMC sports science, medicine & rehabilitation2022n = 15
RCTHuman
This study looked at whether adding sauna sessions after exercise affects gut bacteria, intestinal barrier function, and inflammation in young men. Fifteen untrained men were split into two groups: one…
Andrology2016n = 20
RCTHuman
This study set out to see what repeated heat does to sperm. Twenty men with normal semen results were randomly split into two groups, and both had their testicles warmed…
Journal of athletic training2012n = 25
RCTHuman
This study set out to see whether heat on its own triggers some of the same responses in the body as exercise. Twenty-five healthy young adults, 13 men and 12…