Javier de la Fuente Rocha is a specialist in Internal Medicine (UNAM), a specialist in Clinical Gerontology (University of Paris Descartes), a specialist in Geriatrics (University of Paris Descartes), a foreign assistant in Internal Medicine and Geriatrics (Faculty of Medicine Pitié-Salpetriére), a Master in Philosophical Anthropology (Universidad del Tepeyac) and a PhD in Contemporary Philosophy (Autonomous University of the State of Mexico). He has had teaching experience as an adjunct professor of the postgraduate specialization course in Internal Medicine at the ISSSTE Hospital Tacuba (1997-2006). He has also been interim tenured professor of the Chair of Comprehensive Basic Nosology (1974) and Comprehensive University Professor of Postgraduate Geriatrics at UNAM (1982). He is currently a tenured professor of the subjects Interpretation of Medical Diagnosis (since 2014), Undergraduate Geriatrics (since 2015), Neurobiology in the master's degree in IPICS Integral Psychotherapy (since 2007) and Health of the Elderly, at the Faculty of Medicine at UNAM. He has had appointments as vice president of the Mexican Council of Geriatrics (2008-2010). He is the author of 60 steps for medical diagnosis (2021), published by Pax.