Christoffer works as chief psychiatrist at Psychiatry South Stockholm, Sweden. He recieved his Ph.D from the Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, in 2013. Christoffer was a post doctoral researcher at Melbourne Neuropsychiatry Center, University of Melbourne, Australia, 2014-2015. He's now the Principal Investigator of Priotab and Prevent-IT, two academically initiated clinical trials at Karolinska University Hospital, Stockholm, on pharmaceutical and psychotherapeutical methods to reduce the risk of men with pedophilia committing child sexual abuse. Christoffer is lecturer in psychiatry and the author of Neurovetenskaplig Psykiatri (Natur och Kultur, 2018), an award winning textbook in Swedish on neuroscientific psychiatry.