Top 2 in Top 10 Weird Things Only in Japan.
Only in Japan is it so comfortable to go to the toilet! You can choose to spray the automatic rinse, warm the seat, or turn on music to avoid embarrassment because sensitive noises can be heard by outsiders. More surprisingly, in Japan there are smart toilets that can measure blood pressure, urin, protein, body fat and weight every time someone uses the toilet and anyone can have regular health checks and self-readjust body state when necessary.