Anger can be the result of many different factors, some of which may not be recognized by the person experiencing the anger. For example, people who go through the pain of a divorce often suffer with untreated anger for years after the separation. Illness and death can cause those who grieve to feel extremely angry as part of the grieving process. Children who have suffered neglect or abuse may bury their emotional wounds for years, only to have the wounds resurface in adulthood in the form of anger and aggression. This natural emotion is the way our bodies and minds try to protect our inner selves from perceived threats. Even if an attack is not imminent, it is how we view a situation that creates the greenhouse for anger to grow. In many cases anger is a normal response and not problematic in a person's life, but approximately one in five Americans faces the challenge of uncontrollable anger.