According to the theory of AutoHemo, part of the way it works is because it induces the body to believe an injury is present so that it mobilizes all the repair mechanisms to examine the "wound" and send in the correct defenses. Since the "wound" consists of your own blood that has been exposed to light and air, thereby weakening those pathogens that work only in darkness and absence of oxygen, which may be present in the blood, or markers of other conditions, it acts as a sort of auto-immunization to EXACTLY what is present in YOUR system at the very time of drawing. In other words, no lab could more precisely design a vaccine against whatever is ailing you than your own body. Your own blood has in it all the signs, signals, and sometimes even pathogens, of exactly what is wrong with you all the time.