A written agreement which explicitly states a fixed duration that the contract will be in effect. The signing parties are obligated to adhere to the terms and conditions within the contract until the expiration, or end date, of the contract. http://www.businessdictionary.com/definition/term-contract.html.
The most common symptoms of Lou Gehrig's Disease are: 1  twitching. 2  cramping, or stiffness of muscles. 3  muscle weakness affecting an arm or a leg.  slurred and nasal 1  speech. or difficulty chewing or swallowing.
Addison's disease is characterized by the withering of the adrenal glands, which produce adrenaline and other hormones. Symptoms include fatigue, dizziness, muscle weakness, weight loss, difficulty standing up, nausea, sweating, and changes in mood and personality.