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In the old days, it seemed simple: Men hunted and women bore and raised kids. Then we moved out of caves, invented gender studies, and learned a thing or two about genetics. Now nothing is clear cut. While social and biological analyses of gender offend some, they have freed others to finally feel comfortable in their own skin.
Consumer behavior is a hotbed of psychological research as it ties together issues of communication (advertising and marketing), identity (you are what you buy), social status, decision-making, and mental and physical health.
Sociopathy is an informal term that refers to a pattern of antisocial behavior and attitudes. In the Diagnostic and Statistical Manual of Mental Disorders (DSM), sociopathy is most closely represented by Antisocial Personality Disorder.