Alona Luckey, an Applied Behavioral Analysis tutor, works with Sophia, 5-year-old daughter of U.S. Army Sgt. David Hong, Fort Eustis chaplain assistant, on developmental skills at Fort Eustis, Va., Oct. 7, 2013. Because of Dravet syndrome, a rare form of epilepsy caused by gene mutations, Sophia has developed slower than her peers. (U.S. Air Force photo by Airman 1st Class Austin Harvill/Released)