Research and Studies around the Subject of Rebounding

What Exactly Is “The Immune System”?
The Nemours Foundation and the National Institute of Allergy and Infectious Diseases 28.03.2014
The immune system is the umbrella term for an extremely complex process which involves specialized cells, several major organs and a complicated set of biological procedures designed to rid us of toxins, waste, and to defend us from microscopic biological threats. Below are definitions from two different health resources: KidsHealth.org, which is a part of The Nemours Foundation; a nonprofit organization devoted to improving the health of children, and the National Institute of Allergy and Infectious Diseases, which is a associated with the National Institute of Health. Both of these organizations have extensive online information and are worth exploring.