Even if teens have not actually engaged in risky behaviors but merely brag about them online, this can still affect their future behavior, said study co-author Dr. Dimitri Christakis, professor of pediatrics at the University of Washington and director of the Center for Child Health, Behavior and Development at Seattle Children's Hospital.

CNN: Study: Teens on MySpace mention sex, violence

"Robosquirrel" joins a growing list of robot creatures created by UC Davis which include a robot lizard -- used to study display behavior in anole lizards in the Puerto Rican jungle.

CNN: April 4, 2012 -- Updated 1350 GMT (2150 HKT)

Their study followed the voting behavior of the forty-five per cent of white Americans who identify themselves as working class.

NEWYORKER: The Hardest Vote

There was no difference in anti-social or risk-taking behavior between the stressed and relaxed men, the study found.

MSN: Stress turns guys into social butterflies

This was true even after the researchers took into account how aggressive the children were at the beginning of the study -- a strong predictor of future bad behavior.

CNN: Violent video games linked to child aggression

While she knows of no research examining the long-term impact of reality TV, a several decades-long study shows people who watched aggressive and violent behavior on TV as kids were more likely to be aggressive, hit their spouses and engage in other inappropriate behavior later in life.

CNN: Our unhealthy love of reality TV bullying

"Study after study has shown that... on-screen smoking has a powerful influence on behavior, " Fiore says.

CNN: Should smoking trigger an R rating?

You could be hard-wired to stay calm in a stressful situation, suggests a study published in the journal, Organizational Behavior and Human Decision Process.

FORBES: New Study: Your Work Stress Isn't Your Boss's Fault