[inglor_cz]

There is some research on effect of sauna on health. It seems that going to sauna is associated with lower mortality.

https://jamanetwork.com/journals/jamainternalmedicine/fullar...

[djedr]

Thanks for the link. Also found this on cold showers: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5025014/ | https://news.ycombinator.com/item?id=25705182