LESSON 2 · Secrets Your Body Keeps
Brain Myths Debunked
The claim that humans use only 10 percent of their brains is completely false. Brain imaging shows every region activates during a normal day, and both hemispheres contribute to virtually every cognitive task. There are no left-brain or right-brain personality types — this popular idea has no basis in neuroscience.
Memories are connection patterns distributed across millions of neurons rather than stored in single locations. This is why brain damage typically degrades memories gradually rather than erasing them entirely — the pattern persists in partial form across enough neurons to remain partially accessible even after significant tissue loss.