According to science writer Benjamin Radford, an editor at Skeptical Inquirer magazine, this idea has been put forth by psychics who say they've learned to harness unused parts of the mind.

But new brain imaging techniques such as MRIs and PET scans clearly show that many different regions of the brain are simultaneously being called into play throughout the course of a person's day -- not just one 10 percent chunk.

Here are other science myths that have been debunked.

WARM TAP WATER FREEZES FASTER THAN COLD TAP WATER.
What is true is that very hot water (195 degrees F) freezes faster than hot water (140 degrees F). And the reason for that is evaporation. Much of the very hot water is lost to steam, leaving less water behind. Less water means the very hot water will freeze faster.

THERE'S A DARK SIDE TO THE MOON.
Pink Floyd had a hit with "Dark Side of the Moon," but it's simply not true. From our perspective on earth, we always see the same side of the moon. But because the moon rotates, the far side of the moon is at times lit up by the sun.

A PENNY DROPPED FROM THE EMPIRE STATE BUILDING WOULD KILL.
Scientists say that a penny could reach about 190 miles an hour if dropped from the height of New York's Empire State Building, which is 1,250 feet. But with air resistance and wind it would probably be much less. You'd get a nasty bruise, but it's not likely to be fatal. Besides, updrafts caused by the wind would most likely blow a penny onto a setback roof before it reached the street.

YOU MUST WAIT AN HOUR AFTER EATING BEFORE SWIMMING OR YOU WILL DROWN.
I know your mom made you wait 60 minutes after eating a Popsicle, but swimming shortly after you eat a snack doesn't cause stomach cramps that can kill.

IF YOU ARE COMPLETELY COVERED IN PAINT, YOU WILL DIE OF ASPHYXIATION.
This one got started because of the scene in the James Bond movie "Goldfinger" where the beautiful woman dies after she is painted all in gold. You won't suffocate if you paint your entire body, simply because your skin doesn't "breathe." But you could have a fatal heat stroke if the room is hot because your ability to sweat would be impaired.