We all seek out stress. We hate the wrong kinds of stress but when it's the right kind, we love it - we pay good money to be stressed by a scary movie, a roller coaster ride, a challenging puzzle.

I had never planned to become a savanna baboon when I grew up; instead, I had always assumed I would become a mountain gorilla.

It's probably even the case that if you stoked up some Buddhist monks with tons of testosterone, they'd become wildly competitive as to who can do the most acts of random kindness.

Importantly, rather than promoting aggression, testosterone promotes whatever is needed to maintain status when challenged.

If I had to define a major depression in a single sentence, I would describe it as a "genetic/neurochemical disorder requiring a strong environmental trigger whose characteristic manifestation is an inability to appreciate sunsets.

Until you appreciate something crucial - It is incredibly easy to manipulate us as to who counts as an Us, who as a Them.

Some Poor grad student pressing on the flanks of a hamster and out comes a doctorate on the other side