That is simple and sounds obvious: Single men are immune to the worries and the stresses that comes with marriage and obviously they dont need to worry about divorce nor cheating and the consequences of a divorced and they dont need to worry whether his wife still love bom or not... This reasoning also apply to women but since most divorces are initiated by the wife, married men need to worry more about It. And as you know stress is harmful to health

Single men also dont need to worry and quarrel about splitting the cost of dates and bills with their girlfriend and dont need to endure hypocrytal feminists girlfriends so one less stressor in their lives...