Post Traumatic Stress Disorder (PTSD) is a serious type of anxiety caused by an extremely stressful event or series of events. Many people experience only limited benefit after trying various therapies and medication. Neurofeedback trains the brain to produce a calm state, as well as regulate the stress response. In addition, the specific areas of the brain affected by PTSD can be targeted. Frequently, the first sign of improvement is that a client sleeps better. Then other symptoms begin to improve.