Most of the people are scared from different kinds of things such as darkness or let's say ghosts or disordered human face. Some of the origin of such fear are from the stories that someone told you. You don't only listen to that horror story but also imagine it inside your mind which then becomes scary and then u start to avoid from being in such situations. From my experience I can say that the most common types of fear are "Not Able to Breath" and creepy sounds while you are in dark forest or dark place let's say your room where the light is turned off.
what are you afraid of the most?