Ben Sessa is an MD psychiatrist interested in the developmental trajectory from child maltreatment to adult mental disorders. He is a MAPS and Compass-approved MDMA and psilocybin psychotherapist and senior research fellow at Bristol and Imperial College London Universities, and has been a study doctor administering and receiving LSD, DMT, psilocybin, MDMA, and ketamine on scientific studies. He is the author of multiple articles and medical textbooks exploring psychedelics, including Psychedelic Renaissance, and is co-founder and director of the Breaking Convention conference.