from the depends-which-part-of-utah dept.
Calopteryx writes "Want to live a little longer? Get a second wife. A study reported in New Scientist suggests that men from polygamous cultures outlive those from monogamous ones. After accounting for socioeconomic differences, men aged over 60 from 140 countries that practice polygamy to varying degrees lived on average 12% longer than men from 49 mostly monogamous nations."
We warn the reader in advance that the proof presented here depends on a
clever but highly unmotivated trick.
-- Howard Anton, "Elementary Linear Algebra"