For years he was tortured by a horrifying image of 9/11: elevator doors at the World Trade Center slide open, and burning people stumble out; screams fill the area. Except, he was not at the World Trade Center that day. A clinical psychologist, he had treated several patients who were there and suffered post-traumatic stress disorder (PTSD) as a result, unable to rid themselves of the terrifying memories. More.
Post-Traumatic Stress Disorder Can Be Contagious