Shortage - Definitions. 1  In a perfect market (one that matches a simple microeconomic model), an excess of demand will prompt sellers to increase prices until demand at that price matches the available supply, establishing market equilibrium [1] [citation needed].
Addison's disease. Addisonâs disease, also known as primary adrenal insufficiency and hypocortisolism, is a long-term endocrine disorder in which the adrenal glands do not produce enough steroid hormones. Symptoms generally come on slowly and may include abdominal pain, weakness, and weight loss. Darkening of the skin in certain areas may also occur.
Most cases of Addisonâs disease result from a problem with the adrenal glands themselves (primary adrenal insufficiency). Autoimmune disease accounts for 70% of Addisonâs disease. This occurs when the body's immune system mistakenly attacks the adrenal glands. This autoimmune assault destroys the outer layer of the glands. Long-lasting infections -- such as tuberculosis, HIV, and some fungal infections -- can harm the adrenal glands.