They also assign homework designed to correct false beliefs. External events, such as bad luck, other people, a sick society, cause unhappiness. I can't control these things, so it's not my fault things are so awful. When things don't go our way, it isn't something awful to go into a rage or deep depression about. Although an event may be regrettable, it is always a psychologically understandable and behaviorally lawful outcome.
Some scientists doubt that irrational ideas and faulty logic cause depression.
In spite of criticism, cognitive explanations are the most accepted explanations of depression among psychologists today. Depressed people are prone to think in several ways that may produce sadness and pessimism. Actually, depressed people usually don't think much about the future. The erroneous belief that things will not get better may lead to suicidal thoughts. This hopeless vision of the future is based on a general global perception that their problems are huge, innumerable, and insolvable.