In some  psychological theories, the<unk> , also known as the Type A Behavior Pattern, is a set of characteristics that includes being impatient, excessively time-conscious, insecure about one's status, highly competitive, hostile and aggressive, and incapable of relaxation. Type A individuals are often highly achieving workaholics who multi-task, drive themselves with deadlines, and are unhappy about the smallest of delays. Although they may exhibit some or all of these characteristics, it does not mean that people with the<unk>  are incapable of showing love, affection or other types of non-pessimistic behavior. Many are also capable of "couching" some of these behavior attributes with proper treatment and medication. Those who do not seek treatment have been described as stress junkies, and often display some of the following characteristics:
The<unk> , in contrast, is patient, relaxed, and easy-going.  There is also a Type AB mixed profile for people who cannot be clearly categorized and have a combination of both types of personality.
Type A personality
Type D personality
Apophenia
Dependent personality disorder
Big Five personality traits
Dual disorder
Histrionic personality disorder
Obsessive compulsive personality disorder