resumably because it gives them a safe experience of a potentially catastrophic （大灾难）scenario（场景）.
They find it pleasurable（快乐的）, and pleasure is evolution''s（演进） way of motivating us toward adaptive behaviour.
Horror is pleasurable to many people because it lets us play with negative emotions and develop coping strategies. We learn what it feels like to be truly afraid, and we learn how to handle negative emotion. How, then, does horror work?
My research suggests that horror works by exploiting （利用）an ancient set of biological defense （防卫）mechanisms - an evolved fear system, which we share with other animals.
But humans are uniquely imaginative, and we use our evolved imagination to travel into virtual worlds that are full of danger.
There are good reasons for watching a horror film, even if you''re not a loyal horror fan.
If you make it through the film in one piece, you''ll probably experience a strong sense of mastery（掌握）, a sense tha