So, while watching the news tonight, there was mention of how one of the new theories of things contributing to heart disease is a Vitamin D deficiency. Throughout the whole report they keep showing Vit D supplements. Nowhere in the newscast to they mention the easiest, cheapest, and generally most effective way to get vitamin D: go outside. Go get your recommended daily allotment of sunshine (it's seriously only something like 10 minutes).
[Aside] if you take calcium supplements (or even if you don't), be aware that calcium needs vitamin D in order to be absorbed and used by your body. So drinking all that milk isn't going to do you a lick of good if you don't get any vitamin D to go along with it. [\Aside]
And thus another thing can be added to the list of problems Americans have because they play video games and watch TV instead of playing outside.