HELSINKI -- Matias Jarnefelt is always thinking about saunas. But the CEO of Harvia Group isn't sneaking out of his suburban Helsinki office to enjoy Finland's favorite way to relax.
Instead, he's studying raw sauna data, and they're telling him that Japan will be a hot spot for his sweaty line of work.
.jpg?width=178&fit=cover&gravity=faces&dpr=2&quality=medium&source=nar-cms&format=auto&height=100)
