March 15, 2013 5:56 pm NBC4 Health & Fitness Expo: Passport to Health CareFirst BlueCross BlueShield’s Carla Diggs Smith explains this year’s Passport to Health contest. Local 2:54 ‘Healthy moms equal healthy babies': Children's National offers maternal health care 2:14 Opioid crisis: National drug take back day on Saturday 2:55 Concussion treatment: Returning to school and limiting screen time may help, study finds 2:39 What to know about ADHD medication and pregnancy 2:08 How to pick the best running shoes for outdoor exercise