Every human being has a "fear" is important--a show of human habits. Humans are scared, hurt, fear death. So start coming in, that there will be more healthy.
All people with "fear" is critical to the stimulation of human behavior. All men are not afraid to die, so I started to pay attention to good health more.
All men have a "fear" is the important motive to show behavior of human, all men fear afraid of dying, he began to pay attention to have good health more and more.