“…The long working hours have a negative effect both on professional life and also on the social and family life of the individuals affected (1,3) . Difficulties in social relationships and personal activities (1,3) , as also the lack of time for leisure pursuits and health care, are often mentioned as being related to long working hours (1,(3)(4) . Thus, long working hours have been associated to several illnesses and symptoms, including bouts of depression, high blood pressure, muscular and skeletal problems, gastrointestinal disorders, stress and fatigue (4)(5) , and have also been linked to behaviour patterns that are inappropriate for good health, such as a greater consumption of alcohol, cigarette smoking, reduction in the quantity of physical exercise, and an inadequate standard of sleep or other sleep disorders (5)(6) .…”