"Is killing yourself adaptive? That depends: An evolutionary theory about suicide" »

In fact, a scientific understanding of suicide is useful not only for vulnerable gay teens, but for anyone ever finding themselves in conditions favoring suicide. I say “favoring suicide” because there is convincing work… indicating that human suicide is an adaptive behavioral strategy that becomes increasingly likely to occur whenever there is a perfect storm of social, ecological, developmental and biological variables factoring into the evolutionary equation.

Hunted down the Baumeister article referenced at the end of the piece.  Interesting reading.