In recent years I have seen a disturbing trend of students with intellectual disabilities coming into my office with severe signs of PTSD, and in many cases given limited language abilities the issues can be very intractable. We are becoming much more aware of post-traumatic stress disorder (PTSD), perhaps because of the experiences of our service men and women in overseas deployments, and its devastating effects on those who suffer from it. However, PTSD as a distinct diagnosis did not enter the DSM-3 until 1980. PTSD, which occurs after exposure to such traumatic events as threat to life or severe injury to self or others, occurs in roughly 20 to 30% of people exposed to such traumatic events. Recent research suggests that those individuals with higher IQs are able to weather the effects of such traumatic events better, perhaps due to their ability to process and discuss their emotional reactions, as well as to gather the resources to ensure a support network. But persons with diminished cognitive abilities are not as fortunate, and it is only fairly recently that we have begun to appreciate that those persons with cognitive impairments are affected by PTSD; in fact, lower intelligence may even be a risk factor for PTSD. How often PTSD occurs in this population, however, is uncertain.