http://news.bbc.co.uk/2/hi/health/8478287.stm
Odd. I'm ambidextrous and no one has ever accused me of being ADHD. Way back when I was in school I did decent - better in the subjects I cared for than the ones I didn't, but still above average in all of them. I am multi-lingual and have never had a problem picking up new languages.
If you read the article all the way through, they mention that most ambidextrous people don't have these problems, yet both the title of the article and the beginnings of it lead you to believe ambidextrous people are poor students, bad at languages, and prone to more serious ADHD issues. People who are simply skimming will pick up that, but not that "most of the mixed-handed children we followed didn't have any of these difficulties."
Bad journalism of this sort annoys me.