3 CEOs from companies transforming, and being transformed by Health 2.0, in conversations about the future of their businesses. Jeff Arnold (CEO, Sharecar) is interviewed by Elizabeth Coen from CNN, Giovanni Colella (CEO, Castlight Health), is interviewed by  Claire Cain Miller from the NYTimes, and John de Souza (CEO, MedHelp) is interviewed by  Jane Sarasohn-Kahn from Health Populi .