About this episode
Guy Raz is showing off his latest addition to his first aid kit, but what does this have to do with medical marvels? We've got the WHATs and the WOWs about medical marvels, and it's up to you to guess the winning WOW! See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info .