[0:00]This video perfectly explains how the placebo effect works. So the scientist puts a fake hand in front of him while his real hand is hidden to the side, covered by a wooden board.
[0:08]Then he convinces the guy's brain to believe that the fake hand is his real one by rubbing a ruler on both at the same time. Slowly, the brain starts to get tricked.
[0:18]The guy starts to feel the sensation of the ruler in his fake hand, and when the scientist tested by tapping on the fake fingers, his real hand actually responded to it. Cool, right?
