Depression May Offer An Evolutionary Advantage
Does depression offer an evolutionary advantage? Biologists have proposed several theories about the role of depression in evolution, focusing on how it affects behavior in a social context, but two psychiatrists now offer a different explanation: There may be a link between depression and resistance to infection.
Depression is so common – affecting one in 10 adults in the United States, according to the Centers for Disease Control and Prevention – that the possibility of depression seems to be "hard-wired" into our brains.
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