Japanese relaxation technology is still light-years ahead of poky ole America. Behold the rice-sauna!
Here is my mom buried in rice. She introduced me to this AMAZING experience. It's a wooden box full of the outer layer of rice mixed in with special bacteria that does what bacteria does and produces major heat. You basically strip down and get covered in this stuff for 15 minutes…and that must be the maximum because when you get out, your body is jeeeellllooooo. The rice and bacteria combined with the heat open your pores, suck out bad stuff, and infuse you with good stuff (minerals?). Sorry I can't be more specific, but there's something phenomenal going on: you get heated to the core in a very different way than a hot bath.
(Thanks, Dav!)
