My day for radio programs! BBC Radio 4 has an interesting discussion on the mind-body problem, and there's also an interesting program on the gut - and for those who think I'm wandering a little too far from my supposed turf, the new approach to our gastrointestinal tract is to see it as our second brain. Really! As one whose every emotion seems to be echoed (if indeed, not initiated) in my gut, I think this perspective has a lot going for it. And leads to an interesting question (look, we're back to the mind-body issue) - does the brain affect the gut, or the gut affect the brain? As soon as you ask the question, you realize the answer is, surely, that both affect each other.