Despite the heat and humidity outside, I decided today to head to Asagaya to Tokyo Ganbanyoku, to pay for the privilege of sweating even more than usual. Sounds odd, I know, but it is a relaxing and refreshing experience.
A ganbanyoku is similar to a sauna, but not as intense. You change into some light cotton clothes and lie on a heated flat stone, and very soon the sweat starts pouring off you. After about fifteen minutes you take a break, drink some water, and then head back in for more, and so on. It is supposed to have a detoxifying effect as well as being good for your skin. I can't say for certain if that's true, but I certain felt better afterwards.