Alzheimer's disease is a progressive and irreversible brain disorder that is characterized by a steady decline in cognitive, behavioral and physical abilities severe enough to interfere with everyday life and necessitate full-time care. Symptoms vary from person to person, but all people with Alzheimer's disease have problems with memory loss, disorientation and thinking ability. Individuals with Alzheimer's disease may have trouble finding the right words to use, recognizing objects (such as a pencil), recognizing family and friends, and may become frustrated, irritable, and agitated. As the disease progresses, physical problems may include loss of strength and balance, and diminishing bladder and bowel control. As more and more of the brain is affected, areas that control basic life functions, like swallowing and breathing, become irreversibly damaged, resulting eventually in death.
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