Whether you're a "slacker" or a "go-getter" could depend on the chemicals your brain releases.
According to a brain-imaging study, people who released dopamine in the part of the brain that influences reward and motivation were willing to work hard.
On the other hand, "slackers"- had high dopamine levels in the part of the the brain that influences emotion, and risk perception.
Researchers at Vanderbilt University hope their findings will help treat attention-deficit disorder, and depression.
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