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Neuroticism is a fundamental personality trait in the study of psychology characterized by anxiety, moodiness, worry, envy and jealousy. Individuals who score high on neuroticism are more likely than the average to experience such feelings as anxiety, anger, envy, guilt, and depressed mood.
Since a key aspect of high levels of neuroticism is a general negative emotional view of the world, this personality trait can have significant impacts on quality of life issues. For example, people who score high on scales of neuroticism tend to see themselves as being at the mercy of the rest of the world.