March 20, 2013 12:18 pm A Chef Stays Healthy with Martial Arts Chef Cathal Armstrong has turned to martial arts to stay fit and slim. News4’s Eun Yang reports. 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