Ben Sessa is a consultant psychiatrist in adult addictions, working part-time at Addaction in Weston-Super-Mare and is senior research fellow at Bristol, Cardiff and Imperial College London Universities, where he is currently taking time of clinical medical practice to study towards a PhD in MDMA Psychotherapy. He has specialist training as a child and adolescent psychiatrist and is interested in the developmental trajectory from child maltreatment to adult mental health disorders. Dr Sessa’s joint interests in psychotherapy, pharmacology and trauma have lead him towards researching the subject of drug-assisted psychotherapy using psychedelic adjuncts. He is the author of two books exploring psychedelic medicine; The Psychedelic Renaissance (2012) and To Fathom Hell or Soar Angelic (2015) and is currently conducting research with Imperial College London and Cardiff universities studying the potential role for MDMA-assisted therapy for the treatment of PTSD and alcohol dependence syndrome. Dr Sessa is outspoken on lobbying for change in the current system by which drugs are classified in the UK, believing a more progressive policy of regulation would reduce the harms of recreational drug use. He is a co-founder and director of the UK’s Breaking Convention conference.