Psychological perspectives such as cognitive, behavioral, psychodynamic, and humanistic can be applied to understand individual behavior. These perspectives focus on different aspects of the individual's mental processes, behaviors, unconscious motivations, and personal growth. By considering these perspectives, psychologists can gain insights into the underlying factors influencing an individual's behavior.

No. By traditional vampire mythology, they are quite limited.

No, not all perspectives can explain every psychological illness. Different perspectives in psychology may emphasize different factors, such as biological, cognitive, behavioral, or social influences, and each perspective may provide valuable insights into certain aspects of an illness. However, a comprehensive understanding of a psychological illness often requires considering multiple perspectives.

Lilith from Jewish mythology.