Choice Theory/Reality Therapy is a counseling method developed by William Glasser that focuses on internal control and meeting basic human needs. It teaches clients choice theory and uses the WDEP process - defining wants, examining behavior, evaluating plans, and creating positive plans. The theory promotes problem-solving skills and mutual respect over criticism. It views mental health as fulfilling the five basic needs of survival, love, power, freedom and fun. PTSD involves exposure to trauma and symptoms of intrusive memories, avoidance, mood changes and hyperarousal according to the DSM-V. It can cause problems with memory and emotions that increase suicide risk.