SYSK just received an e-mail from a listener named Joe who makes an excellent point about health care reform. At the crux of the health care reform debate is the incredible sum of money the United States spends on health care each year, about $2.4 trillion last year, which ate up 1/6 of our entire gross domestic product. This is, for lack of a better word, a substantial amount. Joe points out that the best way to curb health care spending is to curtail our use of it. Why don't we lower health care costs by leading healthier lives? Greater health leads to less use for health care, and by the constraints of supply and demand, the cost of health care should decline.