How much brain power do humans use?

"Let's put it this way: the brain represents three percent of the body's weight and uses 20 percent of the body's energy." So that settles it, once and for all—with all due respect to Mr. Freeman, who shouldn't take this debunking personally. read more

Sure, some parts of your brain are working harder than others at any given time. But 90 percent of your brain isn’t useless filler. Magnetic resonance imaging shows that most of the human brain is active most of the time. In the course of a day, you use just about every part of your brain. read more

The 10 percent of the brain myth is a widely perpetuated urban legend that most or all humans only use 10 percent (or some other small percentage) of their brains. It has been misattributed to many people, including Albert Einstein. By extrapolation, it is suggested that a person may harness this unused potential and increase intelligence. read more