Why people hear voices.

       I believe that some people are traumatized as a child. If you are traumatized, especially at a young age, then it can mentally mess with your head. Some peopl are also just flat out crazy and kind of psycho. If someone hears a voice randomly and no one is around them, then they probably have way to much on their mind at that time and just think they hear voices when indeed they don't. Some people have to take medication because their mind is so messed up. Others might have to be sent to stay in a mental facility where they can be monitored 24/7. It takes a lot for some people to get so mentally crazy that they have to be sent away, but it happens more than you think it would.