An InExact Science

My grandfather is getting older, and I am losing him.

If belief in the supernatural is a product of being human, why are there people who don't believe in anything?

Why do so many of us world-wide believe in the supernatural? Psychologists say this may be a byproduct that comes from our most unique traits as human beings.

I talked to leading researchers on how we learn our first language... and how we may even lose it.