The "go with the flo" toilet designed by students from Arizona State University boasts such features as an electromagnetic ball valve that uses just one-and-a-half gallons of water from the tanks to the bowl and a sink built in above the cistern, allowing you to reuse the water you've washed your hands with when you flush (which japanese toilet makers figured out long ago). But it is the squatting position the user takes that strengthens the back and builds abdominal muscles that the designers say is its most yoga-like feature (which indian toilet makers figured out a ling time ago).
go with the flo toilet
indian squat toilet
japanese hand was toiletseen on souljerky/twitter