Young men of this age are also at their peak on sensation-seeking. And, not surprisingly, they are at their peak in levels of the sex hormone testosterone . Testosterone correlates particularly with the disinhibitory types of sensation-seeking—those associated with drinking, drugs, sex and antisocial behavior. It is also associated with normal traits like dominance, sociability and activity. As testosterone levels drop, men's aggressive, antisocial tendencies begin to mellow. Sensation-seeking scores of men aged 50 to 59 are half those of males aged 16 to 19.
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