Existential crises are inner conflicts characterized by the impression that life lacks meaning and confusion about one's personal identity. They are accompanied by anxiety and stress, often to such a degree that they disturb one's normal functioning in everyday life and lead to depression. Their negative attitude towards meaning reflects characteristics of the philosophical movement of existentialism. The components of existential crises can be divided into emotional, cognitive, and behavioral aspects. Emotional components refer to the feelings, such as emotional pain, despair, helplessness, guilt, anxiety, or loneliness. Cognitive components encompass the problem of meaninglessness, the loss of personal values or spiritual faith, and thinking about death. Behavioral components include addictions, and anti-social and compulsive behavior.