March 13, 2013 6:52 pm Stay Fit: Mommy Workouts News4’s Angie Goff reports on two hot trends in the area helping moms get fit. 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?