Many didn't seem to trigger memories until a few years or decades after serving their time. Finally, after the onset of these symptoms began to impact society as a whole, the government became concerned about the well-being of its citizens. PTSD is very common, and according to the U.S. Department of Veterans Affairs, "About 8 million adults suffer from PTSD during any given year, and about 7 or 8 out of 100 people ( or 7-8% of the population) ) will have PTSD at some point in their lives. MedMD.com published an article, "Posttraumatic Stress Disorder," on four main categories of common symptoms experienced by an individual when suffering from PTSD, including: • Reliving: People with PTSD repeatedly relive the ordeal through thoughts and memories of the trauma. These may include flashbacks, hallucinations, and nightmares also experience great distress when certain things remind them of the trauma, such as the anniversary date of the trauma