About 1000 people joined the Sauna Marathon last February 2015. It's one of the funniest marathons in Estonia where competitors run to find the most number of saunas. Dipping in an ice hole and swimming in hot pool earns them a bonus point.

It's definitely a hot-and-cold survival game with hot tub as its prize.

source; dailymail.com.uk

Saunas are built for people to enjoy relaxation and socialization. However, several businesses such as CS2  in Nottingham, UK makes sauna as den gor gay men to have casual sex.

Middle-aged men must consider having a steaming hot sauna bath to improve their health and prolong their life.

Scientists link sauna to prolonged life of middle-aged men by reducing the risk of heart attack up to 63 percent. A study conducted among 2,315 men aged 42 to 60 from eastern Finland supports this theory.

A surprising number of men who use sauna regularly have no or little trace of heart problems. Those who visit sauna four to seven times a week have the lowest percentage of cardiac death. Although researchers have not identified what is exactly causing the health boost, they believe that the relaxing environment in sauna rooms reduces stress and contributes to better health. 

Source: telegraph.co.uk