Guillermo Lahera is Associate Professor of Psychiatry at the University of Alcalá and a psychiatrist at Príncipe de Asturias University Hospital (Alcalá, Madrid, Spain). He is a current member of the Board of the Spanish Society of Psychiatry. Doctor of Medicine with Extraordinary Award with a thesis on “Theory of Mind and Bipolar Disorder”, he has published more than 80 articles in international journals on emotions, social cognition and mental disorders. He has received 11 national awards for his teaching and research work. He has made stays in prestigious centers in Haifa (Israel) and the New York State Psychiatric Institute (Columbia University, NY).