Walking in Circles

Close your eyes and try to walk in a straight path the next time you find yourself in an open field. You'll discover that it's more difficult than you think. Multiple research conducted over decades imply that it may even be impossible. People who have been blindfolded repeatedly end up going in circles, even when they believe they are walking straight.

Why this is the case is unknown, since scientists have a notion but no definitive solution. Years ago, they suspected that this was related to an extremity imbalance - one leg could be larger or stronger than the other, resulting in an uneven gait. The 2010 study ruled out that idea, and the team behind this study believes the explanation is the vestibular system, which is responsible for our balance. Normally, the brain corrects these little errors by recalibration using external landmarks, but when those faults disappear, you'll spin round and round.