Eden Evins, MD, MPH, is the Founding Director and Principal Investigator in the Center for Addiction Medicine and the Cox Family Professor of Psychiatry in the Field of Addiction Medicine at Harvard Medical School. Her research has focused on of the efficacy of pharmacotherapeutic cessation aids in smokers with and without serious mental illness, and on the effect of nicotine on cognitive performance in those with and without schizophrenia. A newer line of investigation explores the effect of cannabis on psychiatric symptoms, cognitive function, and addictive behaviors.