Hypertension Unit, Division of Cardiology, Department of Clinical and Molecular Medicine, Faculty of Medicine and Psychology, University of Rome Sapienza, Sant'Andrea Hospital, Rome, Italy. IRCCS Neuromed, Pozzilli, IS, Italy. Department of Life, Health and Environmental Sciences, University of L'Aquila, San Salvatore Hospital, L'Aquila, Italy. University of Valencia and CIBER 06/03, Physiopathology of Obesity and Nutrition Institute of Health Carlos III, Madrid, Spain. Hypertension Unit, Division of Cardiology, Department of Clinical and Molecular Medicine, Faculty of Medicine and Psychology, University of Rome Sapienza, Sant'Andrea Hospital, Rome, Italy. massimo.volpe@uniroma1.it. IRCCS Neuromed, Pozzilli, IS, Italy. massimo.volpe@uniroma1.it.