The following chart speaks for itself.

Full story here:

As Hispanic teens shed the language of their native countries and immerse themselves in American culture, they become dramatically more sexually active, a new study shows.

A review of 7,300 Arizona teenagers' behavior, which should translate well to other states that border Mexico, including Texas, found that 31 percent of Hispanic teens who speak primarily English have had sex, more than twice the percentage of those who speak primarily Spanish, 14 percent.

The key question — why? — remains unanswered.

"I wish I knew," said the study's lead author, Dr. Mary Adam, a pediatrics researcher at the University of Arizona's College of Medicine. "This is certainly something we are continuing to explore."

(Via G. Gordon Liddy.)