A backaches is no fun at all. People who suffer from one have a lot of pain.Sometimes it's because a vertebra(a bone in the back)is out of position.In ancient Greece,doctors useg to cure a backache like this:They tied the patient to a ladder,pulled the ladder up high and then let it fall to the ground.Bang!The vertebra went back into place. Well ,that was the idea,but this "cure"probably just made the backache worse.