“…People referred to as having a type A personality are usually characterized by a highly status-conscious, ambitious and rigidly organized pattern of behavior [57]. Further risk factors that have been proposed include pregnancy, alcohol consumption, untreated hypertension, use of antibiotics, bone marrow or organ transplantation, infection of the respiratory tract and infection with Helicobacter pylori [12,44,58,59,60,61,62,63]. …”