The fear of death - is a kind of a manifestation of self-preservation instinct. Such fear even has positive aspects: the person who experiences in his life, more appreciative of every passing day. If you try to understand the causes of fear of death, it becomes clear that in fact people are not afraid of death, and the unknown (what happens after that?). Thus the relation of man to death directly affects his way of life, self-confidence and a sense of inner strength.
Why do people fear death? Man terrifying to realize that some day he will cease to exist. In order to cope with this kind of fear, he erects on a subconscious level protection based on the negative. People convince themselves that death does not concern them and it is something far away. This belief is normal for the human psyche and is its internal protection.
But if this defense before the fear of death is not valid, then the person may develop mental disorders. Strongly expressed feeling of fear of death can also cause thanatophobia. People suffering thanatophobia afraid of the process of falling asleep. For such people, sleep and death are associated with each other. Thanatophobia often occurs after general anesthesia procedures.
In addition to the fear of his own death, there is also the fear of the death of loved ones. The funeral of a family member can cause severe stress and negatively affect the health of a person suffering from a phobia. Such people are very difficult to make a kind of a dead loved one, so it is not recommended to attend the funeral. It is because of the difficulty to accept the idea that'll never see a loved one, people and invented the afterlife. Because it implies that all men once to meet with their relatives and friends.