Your brain relies on your vision to make sense of the world. But given the complicated way your brain perceives visual images, it’s basically just hallucinating what it thinks is there, based on incomplete information. It’s no small wonder it gets things wrong from time to time. One researcher found that blindfolding participants enhanced their other senses. Subjects quickly learned to navigate unfamiliar terrain even without the help of vision by listening, smelling, and touching. A different study showed that sitting quietly with a blindfold for just ninety minutes improved participants’ hearing. Other research suggests that doing tasks while blind- folded can improve memory, motor skills, and problem-solving. Should you break out a blindfold and try to make dinner? Probably not. But closing your eyes and let- ting other senses do some work may stimulate your brain.