Teenagers take risks because they are not effective
at predicting the consequences of their actions – or they act on the spur of
the moment because they don’t plan ahead. Right? No, not really.
New research by Beatriz Luna, professor of psychiatry
and paediatrics at the University of Pittsburgh in America says that the risky
behaviour of teenagers is due to large doses of dopamine coursing through their
brains.
Teenagers take risks because of temporary brain
circuits that reward them with large doses of dopamine, a hormone that makes
people happy. Dopamine is a neurtransmitter that helps control the brain’s
reward and pleasure sections. It enables people to see a reward and initiatie
action to receive it. It also regulates emotional responses. Psychologists
maintain that low dopamine activity in the brain may make people prone to
addictions. And the presence of a specific kind of dopamine receptor is
associated with sensation-seeking people, more commonly known as risk-takers.
The brains of teenagers are therefore attuned to
taking risks as part of growing up – to test the boundaries and to receive
levels of happy hormones. These risks could include fighting, undertaking
extreme sports, or experimenting with drugs and alcohol.
Luna says teenagers take risks because, as they gain
independence, they gain control plus an extra reward, such as instant
gratification, when they take risks. So teenagers take risks due to the
dopamine rewards after risk-taking behaviour, which leads to further risky
behaviour.
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