What is Alzheimer's?

Alzheimer's disease (AD), also called Alzheimer disease or simply Alzheimer's, is the most common type of dementia. Alzheimer's is a degenerative and terminal disease for which there is no known cure. In its most common form, it afflicts individuals over 65 years old, although a less prevalent early-onset form also exists. It is estimated that 26.6 million people worldwide were afflicted by AD in 2006, which could quadruple by 2050, although estimates vary greatly.



Each individual experiences the symptoms of Alzheimer's disease in unique ways. Generally, the symptoms are reported to a physician when memory loss becomes apparent. If Alzheimer's is suspected as the cause, the physician or healthcare specialist will confirm the diagnosis with behavioral assessments and cognitive tests, often followed by a brain scan, if available. The prognosis for an individual Alzheimer's patient is difficult to assess, as the duration of the disease varies per individual. Alzheimer's develops for an indeterminate period before becoming fully apparent, and can progress undiagnosed for years.


As the disease advances, progressive symptoms include confusion, anger, mood swings, language breakdown, long-term memory loss, and the general withdrawal of the sufferer as his or her senses decline. Gradually, minor and major bodily functions are lost, leading ultimately to death.


The cause and progression of Alzheimer's disease are not well understood. Research indicates that the disease is associated with plaques and tangles in the brain. No treatment has been found to stop or reverse the disease, and it is not known whether current treatments slow the progression, or simply manage the symptoms. Mental stimulation, exercise and a balanced diet are often recommended, both as a possible prevention and as a sensible way of managing the disease.


You can help now. Join the Alzheimer's Memory Walk, the nation's largest event to raise awareness and funds for Alzheimer care, support and research – and it calls on volunteers of all ages to become champions in the fight against Alzheimer's. There are walks in more than 600 communities. A typical Memory Walk is a 2-3 mile walk held on a weekend morning in the fall.
By teaming up with the Alzheimer's Association, you can walk with a purpose – and move us closer to a world without Alzheimer's. Together, we can MOVE a nation.