The Central Nervous System Causes Certain Chronic Pain Guest: Daniel Clauw, M.D, Professor of Anesthesiology, Medicine (Rheumatology) and Psychiatry at the University of Michigan Some kinds of chronic pain come from the central nervous system and are real, measurable, and treatable. Feeling Rejected? Take Ibuprofen Guest: Roy Baumeister, Professor, Psychology, University of Queensland  We often describe social rejection as pain. We refer to “hurt feelings,” “broken hearts,” and being “crushed.” In a series of studies over the course of more than a decade, social psychologist Roy Baumeister demonstrated that we experience rejection like we experience pain, and we can treat it in the same way.