Your genes are operating beneath the surface of every habit. Indeed, beneath the surface
of every behavior. Genes have been shown to influence everything from the number of
hours you spend watching television to your likelihood to marry or divorce to your
tendency to get addicted to drugs, alcohol, or nicotine. There’s a strong genetic
component to how obedient or rebellious you are when facing authority, how vulnerable
or resistant you are to stressful events, how proactive or reactive you tend to be, and even
how captivated or bored you feel during sensory experiences like attending a concert. As
Robert Plomin, a behavioral geneticist at King’s College in London, told me, “It is now at
the point where we have stopped testing to see if traits have a genetic component because
we literally can’t find a single one that isn’t influenced by our genes.
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