米国の平均寿命が短いのは太り過ぎのせい - himaginary’s diary

という主旨のエントリをマンキューが上げている。 Critics of the U.S. health care system often say things like, "The United States spends more money than anyone else on health care but some other nations have better life expectancy." The next time someone starts making statements like that, keep in mind this chart. It is a useful reminder that differences in health outcomes depend on a lot more than differences in the syst

[maturi]

老年人口が少ない（若い人口が相対的に多い）.