This applies to hot baths and hot jacuzzi'....... Rhonda Patrick----"The sauna robustly increases levels of heat shock proteins for up to 48 hours. Heat shock proteins play a preventative role in neurodegenerative diseases among other things and sauna use is associated with a 66% lower risk of Alzheimer's disease." "I have a new paper out with my coauthor Teresa Johnson on how the sauna is a healthy lifestyle practice to increase healthspan!" https://www.sciencedirect.com/science/article/pii/S0531556521002916?via%3Dih ub#bb0425 -------------------------------- My facebook friends research scientist Rhonda Patrick and husband Daniel in San Diego, Calfornia....via their website ["Found My Fitness"] they proliferate videos of Rhonda's informational lectures and extensive interviews of world leading researchers in nutrition medicine and health. On their way toward the half a million youtube subscribers . http://www.foundmyfitness.com