FALSE

The claim that humans only use 10 percent of their brains is a widely recognized neuromyth that has been debunked by the scientific community 1 3 10. High-credibility sources from MIT, Harvard, and Nature confirm that humans actually use their entire brain every day 4 5 7. While specific regions are more active during certain tasks, imaging shows that nearly all parts of the brain are functional at all times 5 11. This persistent myth has been propagated by popular media, including the movie Lucy, and surveys indicate that between 43 percent and 65 percent of the public still believe it 2 3 9 11. Neuroscience demonstrates that even minor damage to small areas of the brain can have devastating effects, further proving that the vast majority of the organ is essential and utilized 4 6.