We are gradually dying of so many things there is limitless horizon for profit from our despair. While causes seem many, there is a primary underlying cause. A few species including man, became enzyme-deficient so their bodies can no longer create ascorbic from glucose. Ascorbic in sufficient dose-duration-context addresses nearly all of man's health issues. The illness-industries have "carefully looked away" for nearly a century. Put N=1 research into your own hands!