Psychology is the study of the mind and behavior, according to the American Psychological Association. It is the study of the mind, how it works, and how it affects behavior. The APA adds that it ...

Definition of Psychology; Historical antecedents of Psychology and trends in the 21st century; Psychology and scientific methods; Psychology in relation to other social sciences and natural sciences; ...

What's your definition of happiness? Research in the field of positive psychology often defines a happy person as someone who experiences frequent positive emotions, such as joy, interest, and pride, ...