Is there evidence that regular or acute blood donation can improve health? I bet there is, but if so, it is surprising that such studies are not more advanced by the ever-thirsty bloodmobilers. I wonder what the optimum quantity and frequency would be? If someone has a link, please post it. Donating blood might well be quicker and easier for purging some of the blood baddies, especially any that simply have no easy exit in the normal elimination system. Perhaps we will be unrolling the parchments of our blood-letting forebearers to establish starting points for the next big rejuvenation fad!