(Sidenote: I'm still puzzled a little by the fact that my geek friends and I got almost no exercise at all when we were kids in the 50's and 60's, and yet we were all skinny as rails. We drank whole milk, ate greasy burgers, and put butter on everything from toast to crackers to rice to pasta. My mother fried leftovers of many species in bacon grease. So why didn't I grow up fat? And why am I not already dead from heart disease? Portion size may be one factor, but I remember eating like a horse when I was a teen. There's more going on here than we understand.) [Jeff Duntemann's ContraPositive Diary]