Went to this talk with Sarah and Brian and iole200 given by Robert Sapolsky, author of Why Zebras Don't Get Ulcers. The talk was about the content of that book — the connection between stress and more overtly physiological (as opposed to psychological) ailments. He is an incredibly awesome speaker. I've never seen a lecture that was so rapidly delivered and yet so clear and full of hilarious and memorable anecdotes and interesting facts and scientific discoveries. Good stuff.