Sure, you've heard the theory that we use only 10 percent of our brain

[Guest guest]

In-Depth Report by Margaret Littman

Sure, you've heard the theory that we use only 10 percent of our brain --

and it must be true, right? Otherwise we wouldn't make so many mistakes. Not

so fast, say those in the know.

New Interactive Tool

http://onhealth.com/ch1/index.asp