stimuli that produce the most anxiety are presented first. For soldiers who have developed PTSD from combat, this could mean first exposing them to a virtual reality scene of their fellow troops being shot or injured followed by less stressful stimuli such as only the sounds of war. On the other hand, what is referred to as graded-exposure takes a more relaxed approach in which the least distressing stimuli are introduced first. VR-exposure, as compared to in-vivo exposure has the advantage of providing the patient a vivid experience, without the associated risks or costs. VRT has great promise since it historically produces a "cure" about 90% of the time at about half the cost of traditional cognitive behavior therapy authority, and is especially promising as a treatment for PTSD where there are simply not enough psychologists and psychiatrists to treat all the veterans with anxiety disorders diagnosed as related to their military service. VRT is also a promising adjunctive therapy for the treatment of other clinical populations, such as individuals with psychosis. A recent systematic review of psychosocial interventions using virtual reality shows these interventions are safe and well accepted in this population. The studies identified in the review show that psychosocial VRT can improve cognitive, social, and vocational skills as well as symptoms of auditory verbal hallucinations and paranoia in individuals with psychosis. Recently there have been some advances in the field of virtual reality medicine. Virtual reality is a complete immersion of the patient into a virtual world by putting on a headset with an LED screen in the lenses of the headset. This is different from the recent advancements in augmented reality. Augmented reality is different in the sense that it enhances the non-synthetic environment by introducing synthetic elements to the user's perception of the world. This in turn "augments" the current reality and uses virtual elements to build upon the existing environment. Augmented reality poses additional benefits and has proven itself to be a medium through which individuals with a specific phobia can be exposed "safely" to the object(s) of their fear, without the costs associated with programming complete virtual environments. Thus, augmented reality can offer an efficacious alternative to some less advantageous exposure-based therapies. History Virtual reality therapy (VRT) was pioneered and originally termed by Max North documented by the first known publication (Virtual Environment and Psychological Disorders, Max M. North, and Sarah M. North,