Angry/negative people can be bad for your brain: "But what some people found far more disturbing was Robert's wish to make a change in his life that includes steering clear of "people who were deeply unhappy" and hanging around people who are happy. The harsh reaction he's gotten could be a lesson in scientific ingorance, because the neuroscience is behind him on this one."

A few gems here, like the Ghandi quote: "Be the change that you want to see in the world."