Board Thread:Questions and Answers/@comment-75.105.84.125-20131219001500/@comment-24246403-20140104192319

Actually, I remember reading about that once, in Psych class. Someone was convinced their legs didn't work and they lost the ability to walk. Happened with arms to, someone believed their arm no longer functioned and lost functionality in that arm. It's difficult to reverse too, because you have to change a very stubborn belief from the subconscious up, then get the person in for physical therapy so that they regain full motion.