What happens in the brain of someone who has Post-Traumatic Stress Disorder? Why can't we either erase memories or cope with them when they have been shockingly awful? Questions like these will be answered in this quick guide, as well as other interesting facts, anecdotes, and topics. We will discuss the comprehensive concept of dissociative amnesia, the four different subtypes of PTSD, the difference between PTSD and Acute Stress Disorder, specific problems related to homeless veterans, and several other fascinating subjects. Don't wait and get started now.