A study done by Dartmouth researchers with nearly 3,600 middle school age children found that those who were allowed to watch R-rated movies are far more likely to start drinking alcohol at an early age.

The kids were questioned at the beginning of the study and then followed up with nearly two years later. Only 3 percent of the tweens who were restricted from watching R-rated movies had started drinking alcohol. This compared with 19 percent of those who were sometimes allowed to watch R movies and 25 percent of those who were always allowed, had stared drinking.

At the conclusion of the study, Dr. James Sargent said, "We think seeing the adult content actually changes their personality."