"In the eyes of the tech industry, mental health treatment is an area ripe for disruption. In any given year, 1 in 5 adults in the U.S. experience a form of mental illness, according to federal estimates. And research indicates only about half of them receive treatment in a system that is understaffed and ill distributed to meet demand. For tech startups looking to cash in on unmet need, that translates into more than 50 million potential customers."