September 5, 2012 6:34 pm Lyme Disease Prevention Controversy Officials in Loudoun County will decide whether to spray parks and playground areas with an insecticide that kills ticks that carry lyme 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