In economics, a shortage or excess demand is a situation in which the demand for a product or service exceeds its supply in a market. It is the opposite of an excess supply.
The disease is characterized by weight loss, muscle weakness, fatigue, low blood pressure, and sometimes darkening of the skin in both exposed and nonexposed parts of the body. Addison's disease occurs when the adrenal glands do not produce enough of the hormone cortisol and in some cases, the hormone aldosterone. For this reason, the disease is sometimes called chronic adrenal insufficiency, or hypocortisolism.
(Also Called 'Chronic Adrenal Insufficiency'). Addisonâs disease is a disorder in which the adrenal glands--which sit on top of the kidneys--do not produce enough of the hormones cortisol and aldosterone. (Hormones are chemicals that control the function of tissues or organs.).ther causes of Addisonâs disease include: 1  injury to the adrenal glands. 2  infection, including tuberculosis, HIV/AIDS-related infections, and fungal infections. 3  cancer cells from another part of the body that have invaded the adrenal glands. 4  bleeding into the adrenal glands. 5  surgical removal of the adrenal glands.