Glenn Jordan Treisman is the Eugene Meyer III Professor of Psychiatry and Medicine at the Johns Hopkins University School of Medicine. He is Director of the AIDS Psychiatry Service and The Johns Hopkins Pain Treatment Program. The Pain Treatment Program provides care for chronic pain syndromes and is a national referral resource for patients with intractable pain. He is an expert at the overlap between mental disorders and medical conditions and studies the interaction between the brain, the immune system, the microbiome, infectious diseases and the autonomic nervous system.