Do humans use 100 of their brain?

But it's pure science fiction that it takes a chemical cocktail to make humans use their entire brains. It turns out that we are all already giving it everything we've got, according to Dr. Barry Gordon, a professor of neurology at the School of Medicine and professor of cognitive science at the Krieger School of Arts and Sciences. read more

"Evidence would show over a day you use 100 percent of the brain," says John Henley, a neurologist at the Mayo Clinic in Rochester, Minn. Even in sleep, areas such as the frontal cortex, which controls things like higher level thinking and self-awareness, or the somatosensory areas, which help people sense their surroundings, are active, Henley explains. read more

Researchers know that humans do not use every region of their brain for every behavior, unless we are doing something so complex that it requires all of the brains capacities. At any given point in time, about 5% of the neurons are active, but over time and change of ones behavior, PET scans and fRMIs show that the vast majority of the brain is active . read more