1. A crisis is defined as an overwhelming reaction to a threatening situation where a person's usual problem solving strategies fail, resulting in disequilibrium.
2. Crises are usually temporary, experienced as sudden, perceived as life threatening, impair communication, involve actual or perceived loss, and usual coping behaviors are unsuccessful.
3. There are several types of crises including situational, developmental, anticipatory life transitions, adventitious, and those reflecting psychopathology. Outcomes are influenced by factors like perception, maturity, resources, and culture.