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Study links hormone levels to antisocial behaviour
01 Oct 2008
Low levels of the hormone cortisol have been linked to antisocial behaviour in adolescent boys.
The chemical - which is produced by the adrenal gland above the kidneys - normally increases in amount in stressful situations in order to help people regulate their emotions, the BBC notes.
However, a study led by staff at UK academic institution the University of Cambridge found this does not happen in boys with a history of severe antisocial behaviour.
Participants were recruited from institutions including schools and pupil referral units.
Saliva samples were collected from them in a non-stressful environment to measure levels of the hormone under resting conditions as well as before, during and after a stressful experiment.
"While the average adolescents showed large increases in the amount of cortisol during the frustrating situation, cortisol levels actually went down in those with histories of severe antisocial behaviour," the BBC notes.
Lead researcher Dr Graeme Fairchild said the study could be useful in designing new treatments for severe behaviour problem.
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