Unpleasant sounds can cause physical reactions. In some cases, this is a remnant of human evolution. In other cases, it is a disorder.
Health
Many people find it unbearable to watch another person suffer. Physical mishaps make them uncomfortable, physical violence in movies is almost unbearable. But what is really going on inside us when this happens?
Our brain decides which pain stimuli it processes and which it does not. Can we actively control this process?
