Even your propensity to develop certain kinds of diseases and your ability to respond to chronic illness is influenced significantly by the adrenal glands. The more chronic the illness, the more critical the adrenal response becomes. You cannot live without your adrenal hormones and, as you can see from this very brief overview, how well you live depends a great deal on how well your adrenal glands function. For a more detailed explanation of adrenal function, please refer to Dr. Wilson’s book: ”Adrenal Fatigue: the 21st Century Stress Syndrome”, and read Chapter 22: “Anatomy and Physiology of the Adrenal Glands”.
In recent years, we've seen the word syndrome used rather loosely. For example, SARS (severe acute respiratory syndrome) is caused by a virus but is still called a syndrome. Similarly, AIDS (acquired immune deficiency syndrome) is still used, despite the identification of HIV (human immunodeficiency virus) as the culprit. Technically, HIV infection is the disease, and AIDS is the syndrome—the set of symptoms—caused by it; one can have the HIV infection without having AIDS. Individuals can carry the HIV infection for years before symptoms appeared. (Today, those with HIV are being treated before symptoms appear.) The terms HIV and AIDS overlap substantially, and sometimes you can only tell what a particular person (even a medical person) means by the context of the use. AIDS acquired the label of syndrome before the cause was known, and it has stuck.