Yeesh.  Life expectancy in the US hasn't really changed that much compared to how much we've spent.  Don't believe me?  Click here to see a nice graphic that compares US life expectancy versus our health expenditures from 1970-2014.  Just for kicks, check out the other countries on the graph too.  Tough to say, when it comes to life expectancy, that spending more on our healthcare has helped us in the US!  Why the disparity between our life expectancy and that of other countries?  For that answer, look here.