January 10, 2014 5:54 pm FROM 2014: Health & Fitness Expo: Kangoo Jump Shoes At the 2014 NBC4 Health and Fitness Expo, Chakaboom Fitness showed off Kangoo Jump shoes, which absorb 80 percent of the impact on joints and are fun for exercise. 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?