There is no typical profile for someone diagnosed with PTSD as it can affect people of all ages, ethnicities, and backgrounds. PTSD was originally termed "battle exhaustion" or "shell shock" by military doctors but can be diagnosed in children who experience abuse, adolescents who witness violence, or adults after natural disasters. Studies show over half of people experience trauma in their lives, with rape and sexual abuse most common for females and combat exposure for males. Factors like prior trauma history, lack of social support, and other mental health issues may increase the risk of developing PTSD after a traumatic event, though most people exposed to trauma cope well in the short term and under 10% develop PTSD long-term.