Forty: The Age and the Symbol

according actually adolescence adult development adulthood age forty American appear aspect association become beginning believe birth career century changes chapter Christian circumstances cite claim comes common considered course critical cultural death defined depression early economic employment event evidence examine example existence expect experience explain express facet fact feel forty days forty-year-olds four going human ideas importance indicate individual influence Islam Italy least less life-span limit literature lives male meaning Mediterranean mid-life crisis middle middle age nature number forty observations occur old age older organic origin particular period popular possible practices present Press probably produce psychological psychologists reach reason recent reference relative reports represents seems shared significance simply social society span specific stages story symbolic throughout tion tradition transitions turning point United University women York