Step into any public restroom stall in Japan and you’re likely to be enveloped in a soundscape. No, not that kind. It’s the babble of running water, perhaps peppered with cheerful tweets and birdsong, ...

How does a toilet sound to you that, based on what you poop and pee, automatically gives you tips on how to eat healthier or detects early warning of an illness? Amazing? Creepy? Maybe a little bit of ...