Sauna culture is experiencing a boom among young people in Japan. They're being used as a way to solve various problems, with unique efforts underway throughout the country. One local bus company struggling to stay afloat made one of their vehicles into a mobile sauna. Sauna using domestically grown cedar contains hopes for revitalization a lagging forestry industry. A sauna built in a small mountain village are attracting visitors from far and wide, creating warm interactions with elderly residents.