People that use the sauna, for example, 2 to 3 times a week have a 24% lower all-cause mortality compared to people that only use it 1 time a week. But people that use it 4-7 times a week have a 40% lower all-cause mortality compared to people that only use it 1 time a week. So in other words, it seems like the minimal effective dose to get the most robust effect would be 4 times a week.