Dr. Useche is a Professor of Psychology and the Director of the Center for Biomedical Research at the Universidad Autónoma de Bucaramanga in Colombia. He is a psychologist (National University of Colombia) with a PhD in Human Sexuality from The Institute for Advanced Study of Human Sexuality in San Francisco, and a PhD in Public Health from The University of Texas at Houston. Dr. Useche is certified as a Sexuality Counselor by AASECT and the author or coauthor of more than fifty articles, two books and several book chapters. He has been a keynote speaker in numerous academic events in Colombia and has presented his work in conferences in different European, North American and Latin American countries.