Virtual and augmented reality (VR/AR) technologies have the potential to significantly impact healthcare by enabling objective assessments, improved interventions, and more effective training. VR/AR can address major health problems costing billions annually such as chronic pain, smoking cessation, and post-traumatic stress. Current medical applications of VR/AR include surgical training, rehabilitation, pain distraction, and treatment of conditions like PTSD, anxiety, and phobias. VR/AR holds promise for advancing prevention, healthcare access, and medical education.