The research showed that the act of fasting triggered a switch to flip in the body, signalling it to begin a “stem-cell based regeneration of the hematopoietic system.” It forced the body to use up its stores of glucose, fat and ketones, and also started to break down a large number of white blood cells. The loss of white blood cells flagged the body to, in turn, regenerate new immune system cells.
http://awarenessact.com/study-finds-...immune-system/