This will undoubtedly cause a controversy among parents, but a new report suggests that kids who get spanked a lot end up more aggressive. Not only that, but the children are claimed to grow up with various sexual problems relating to their behavior.

First, the data: college students revealed how much they had been spanked as children, and then told researchers about their lifestyle at the present time. Twenty-five percent of those had urged sex without a condom -- these were the students who ranked highest on a scale of corporal punishment. Masochistic sex (or interest) was another common connection among 75 percent of these highly spanked individuals.

However there are some obvious holes in this study. For example, how do you accurately assess the history of these people who had to reach back and remember their upbringing? Like this article suggests, researchers cannot prove cause and effect. Not only that, but some people could exaggerate. Either way, this paper will probably rock the boat as many folks aren't going to appreciate being told they were raised improperly (or that they're doing it wrong).