Post-Traumatic Stress Disorder is a severe mental illness that affects 8 percent of Americans and as many as 14 percent of soldiers returning from Iraq and Afghanistan. Through objective overviews, primary sources, and full-color illustrations this title examines What Is Post-Traumatic Stress Disorder? What Are the Causes of Post-Traumatic Stress Disorder? How Can Post-Traumatic Stress Disorder Be Treated? How Should Society Help Soldiers with Post-Traumatic Stress Disorder?