May 2, 2016 12:25 pm Park Rx: Getting Healthy in National Parks Getting outside is good for physical and mental health, doctors say. National Park Service Director Jonathan Jarvis discusses a new movement to encourage people to get out and exercise. 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