As people enter their middle years, they start to notice more and more frequent lapses of memory, particularly their short-term memory.

They may enter a room to do something, and forget what it is. They may be unable to recall the name of someone who used to live next door. And they may start to worry that their forgetfulness is not just a harmless incident, but the first indication of something far more sinister—the onset of Alzheimer's Disease.

Alzheimer's is the name given to a very serious brain disease in which brain cells are killed by microscopic plaques and tangled fibers. The parts of the brain crucial for laying down and accessing recent memories are usually destroyed first. Brain cell destruction spreads to other parts of the brain, causing progressive loss of function. Death eventually follows.

At present there is no known cure for Alzheimer's disease. Scientists are racing to learn the cause, or causes of Alzheimer's, and to find a way to stop the destruction of the brain once it starts.

There is some evidence that people who have a diet high in antioxidants have lower rates of getting Alzheimer's. Fresh fruits and vegetables, particularly those that have strong, bright colors tend to be high in protective antioxidants.

People who consume greater levels of cold water fish such as salmon, tend to have lower rates of Alzheimer's. There are also vitamins, minerals and herbal supplements that seem to have a protective effect on the brain. Higher intakes of Folic acid are associated with a lower incidence of Alzheimer's disease.

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