Myth: Humans Only Use 10% of Their Brain

The idea that humans only use a small fraction of their brain, often quoted as 10%, has been popularized in media and movies. This myth suggests that tapping into the “unused” parts of the brain could unlock hidden abilities, leading to superhuman intelligence or memory. The concept is intriguing and reinforces the idea that people have vast, untapped potential within their brains. However, neuroscientists have long disputed this claim, yet it persists in popular culture. The myth has inspired numerous fictional narratives but lacks any scientific basis.

Brain imaging studies, including those using fMRI, show that all parts of the brain have a function, whether for conscious thought, sensory processing, or subconscious activities. The Brain and Behavior Research Foundation confirms that nearly every area has a role in daily life, debunking the myth. Even simple tasks activate multiple regions, and brain injuries typically affect specific functions, illustrating that all areas contribute to cognitive abilities. The “10%” myth likely emerged from misunderstandings of brain function, but research confirms that we use the entire brain, even though we may not always be aware of it.