Jan Kalbitzer is a medical doctor who earned his Ph.D. on seasonal fluctuations in brain chemistry in Copenhagen and then specialized in psychiatry and psychotherapy at the Charité – University Medicine Berlin. In 2014, Jan was publicly attacked for discussing the effects of internet use on mental health. This discussion fundamentally affected his research focus which shifted to a deeper interest in the effects of new technologies and communication forms on individuals and society. Last year he published his first book on the topic “Digitale Paranoia – Online bleiben, ohne den Verstand zu verlieren” (C.H.BECK 2016). He currently divides his time between a research project on internet use and mental health at the Charité and a psychotherapy practice in Berlin-Tempelhof. Occasionally, he participates in public debates in German media such as DER SPIEGEL, Süddeutsche Zeitung, Frankfurter Allgemeine Zeitung and DIE ZEIT.