Transition to retirement impact on health and lifestyle habits: analysis from a nationwide Italian cohort oleh Giacomo Pietro Vigezzi, Giovanni Gaetti, Vincenza Gianfredi, Beatrice Frascella, Leandro Gentile, Angelo d’Errico, David Stuckler, Fulvio Ricceri, Giuseppe Costa, Anna Odone, on behalf of the Italian Working Group on Retirement and Health