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.
These glands make hormones essential to a healthy life. When they don't make enough of these hormones, Addison's disease is the result. Addison's disease is a rare condition. Only one in 100,000 people has it. It can happen at any age to either men or women. People with Addison's disease can lead normal lives as long as they take their medication. President John F. Kennedy had the condition. In Addison's disease, called primary adrenal insufficiency, the adrenal glands don't make enough of a hormone called cortisol, or less often, a related hormone called aldosterone.