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 brain that influences emotion, and risk perception.
Researchers at Vanderbilt University hope their findings will help treat attention-deficit disorder, and depression.
Viewers with disabilities can get assistance accessing this station's FCC Public Inspection File by contacting the station with the information listed below. Questions or concerns relating to the accessibility of the FCC's online public file system should be directed to the FCC at 888-225-5322, 888-835-5322 (TTY), or email@example.com.