Epigenetics and depression

IB Psychology: Epigenetics and depression

Modern biologists do not simply argue that a gene “causes” a behaviour; instead, they recognize what is known as the gene-environment interaction. This is part of a field of study known as epigenetics. Epigenetics argues that in order for a behaviour to occur, genes must be “expressed.” Genetic expression is a complex chemical reaction to environmental or physiological changes that allow a gene to “do its...


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