We discuss Doritos for women (and get hungry just thinking about snacks). We hear about the science of eyesight, and why some people think tennis balls are green and others don’t. We get confirmation that laughter really is the best medicine. Sarah gets sad about the loneliest bird in the world. Plus, we interview Sarah Stone Smith who “won” a season of the Bachelor. She shares some behind-the-scenes stories from the show, and why it isn’t always what it seems.