March 11, 2013 5:32 pm Before the Expo: Kidney Disease in the Metro Area In advance of the NBC4 Health and Fitness Expo, News4’s Doreen Gentzler reports on the epidemic – and consequences – of kidney disease. Local 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 3:41 Nail biting: A psychiatrist shares tips