Why are French people skinny?

One of the age old mysteries finally has an evidence-based explanation (link from Kottke). For all the studies that go around, and all the magic bullets people seek to lose weight, in the end, for the majority of people, it still comes to eating less and exercising more. It's really not all that mysterious.
Of course, there are all the studies that attribute health benefits to drinking red wine. So it's not all pain and self-denial.