The study, set to be released tomorrow, finds that Americans will have to drastically reduce their standard of living before retirement to live comfortably, or even avoid destitution, later in life. Middle-income Americans entering retirement now will have to reduce their standard of living by an average of 24 percent to minimize their chances of outliving their financial assets, the study found. Workers seven years from retirement will have to cut their spending by even more -- 37 percent.