why does it take scientific studies to make people recognize principles that God gave us thousands of years ago???

I just read the following in a Yahoo! news article and just had to roll my eyes:

A new study finds that teens who take part in many different kinds of physical activity -- particularly with their parents -- are less likely to get involved in drinking, drugs, violence, smoking, sex, and delinquency than teens who spend a lot of time in front of the television.

"Anything we can do to get kids to be physically active will help them in terms of their physical health, but this research suggests that engaging in a variety of activities may also have social, emotional, and cognitive benefits, including reduced likelihood of engaging in risky behaviors, such as drinking, drugs, violence, smoking, sex, and delinquency," [Dr. Penny] Gordon-Larsen said.

DUH.