March 11, 2018 7:05 pm Thousands Learn How to Live Healthier Lives on Day 2 of the Expo People climbed, danced, ate and found out how to live healthier lives at the NBC4 Telemundo 44 Health & Fitness Expo at the Washington Convention Center. Local 3:16 How to deal with being a night owl 2:13 Public health expert reacts to RFK Jr. cabinet pick 1:37 Whooping cough cases on the rise 2:13 Why a public health pro fears RFK Jr. could increase DC health care inequality 2:27 How healthy are sugar alternatives?