I learnt about this finding out of Finland from a study with thousands of participants over 20 years a few weeks ago. I share it here as I think it can help us improve our longevity.
Basically I set up this community to collect research and info about the Health Benefits of Saunas. If you are interested, I would probably start from the bottom (oldest links to newest links)
When you think how quickly the cost of supplements add up over the years - it might make the investment in an in home sauna worthwhile.
Hope you find this interesting.
Fascinating.
The Japanese also have their Ofuro Hot Tubs. They say this and their diet is why the Japanese live so long.