Good series in the Globe on child obesity. While much of the debate is over how much of a role the school system should play (e.g., more phys-ed, better meals), while schools can and should play a role, the home environment and broader social context likely play larger roles. While I can agree intellectually that more phys-ed is better, personally, I hated phys-ed as a kid and only developed a love for physical activity as an adult (but maybe I’m the odd one).
And of course the usual reasons for child obesity: genetics, fast food, overworked parents, video games and the Internet.
And an article from WebMD citing a study showing the influence that friends have on levels of physical activity (no surprise here):