The Infrared Sauna. Sauna culture in the USA is expanding, with athletes, health-conscious people, and many others flocking to sauna studios or installing their own in the comfort of their homes. Finland, on the other hand, is a seasoned expert in the regular use of traditional saunas. With over 2 million saunas for a population of just 5.5 million people, it’s no wonder Finland is the world’s #1 happiest country. While the USA may not have 2 million saunas per 5 million pe