Historically, very few discoveries were made out of thin air. Most of the greatest insights depended upon the intellectual ecology in which the scientists lived. A certain critical mass of "new findings" occurred, and bright people all over the world found out about it, and several read the tea leaves the same way.

There are nature and nurture components to virtually every behavior a human experiences. The research effort lies only in finding the relevant percentages, not on some absolute value. That's one of the reasons behavioral scientists have to be really good statisticians.

You've got seconds to grab your audience's attention and only minutes to keep it.

There is a neuron in your brain that will respond only to pictures of Jennifer Aniston - provided you have had prior visual exposure to the actress. That neuron does not respond to pictures of Bill Clinton or Halle Berry. Only Jennifer. I used the story to explain the almost ridiculous plasticity of the organ. There is no such thing as Jennifer Aniston in our evolutionary history - she was born in 1969, for heaven's sake - but we are flexible enough to devote an entire cell to her if we have previously encountered her in some fashion.

Change often involves loss, so change can be a risky experience.

To improve short-term memory significantly, reduce the stress in your life. And choose your parents wisely.

Though we have been stuffing them into classrooms and cubicles for decades, our brains actually were built to survive in jungles and grasslands. A lifetime of exercise can result in a sometimes astonishing elevation in cognitive performance, compared with those who are sedentary.