Why do people become unhappy, and what should anyone do about it? These are questions that concern philosophers, psychologists, politicians, neuroscientists, managers, economists, activists and doctors alike. How one sets about answering such questions will depend heavily on what sorts of theories and interpretations one employs. A sociologist will offer different types of answers from a neuroscientist, who will offer different types of answers again from a psychoanalyst. The question of how we explain and respond to human unhappiness is ultimately an ethical and political one, of where we choose to focus our critique and, to be blunt about it, where we intend to level the blame.
Source: salon.com