"James Geary waxes on a fascinating fixture of human language: the metaphor. Friend of scribes from Aristotle to Elvis, metaphor can subtly influence the decisions we make, Geary says. "

In the 1970's there was a test done where the people were told they were either prison guards or prisoners. This is that story and how it came to be.

Neuroscientist Vilayanur Ramachandran outlines the fascinating functions of mirror neurons. Only recently discovered, these neurons allow us to learn complex social behaviors, some of which formed the foundations of human civilization as we know it.

Explore the remarkable plasticity of a baby's brain and see how early experiences influence human development