Various and Sundry Dartmouth Studies.

"When do we reach adulthood? It might be much later than we traditionally think."

--Graduate student, Craig Bennett, at Dartmouth Medical School

Science Daily: Brain Changes Significantly After Age 18

And...

"Even parents who give their child a clear message that smoking is not acceptable run the risk of having that message undermined if they allow their child to see R-rated movies with a lot of smoking."

--Mike Beach, Associate Professor of Family and Community Medicine at Dartmouth Medical School.

Restricting R-Movies Linked To Decreased Teen Smoking, Drinking