Geraldo Lorenzi-Filho graduated as MD, his residency in Pulmonary Medicine and PhD on Pulmonary Defense Mechanisms at the University of Sao Paulo, Brazil. Geraldo did a Post Doctoral training, under the supervision of Prof. Douglas Bradley, University of Toronto, 1996 – 1998. Returning to the division of Pulmonary Medicine at the University of Sao Paulo he set up a sleep laborator at the Heart Institute, University of São Paulo in 1999 where he is the Medical Director. Geraldo became Associate Professor, University of São Paulo in 2006. Geraldo actively participates of the American Thoracic Society where he served as the Chairman of the Program Committee, of the International Conference Assembly of Sleep and Respiratory Neurobiology, American Thoracic Society in 2007-2008. Geraldo is also in the Editorial Board, American Journal of Respiratory and Critical Care Medicine from 2008 to present time. Working at a University Cardiology Centre, the main research interest is related to the mechanisms linking sleep disordered breathing and cardiovascular disease.