Alzheimer's is a disease of the brain that causes problems with memory, thinking, and behavior, and it worsens over time. The first problem many people notice is forgetfulness, severe enough to affect their ability to function act home or at work, or to enjoy lifelong hobbies. Other symptoms include confusion, getting lost in familiar places, misplacing things, and trouble with language.

When Alois Alzheimer first described the disease in 1906, a person in the United States lived an average of 50 years. Few people reached the age of greatest risk and the disease attracted little scientific interest. Today, Alzheimer's is at the forefront of biomedical research; 95 percent of what we know has been discovered in the last 15 years.

Some of the most exciting Alzheimer's research suggests there are steps people can take to maintain brain health and possibly even reduce disease risk. Eating a low-fat diet rich in fruits and vegetables, exercising regularly, and staying mentally and socially active may all help protect the brain.

The links below lead to a wealth of current information available on Alzheimer's disease--the most common form of dementia among older people. Links to information on caring for someone with this disease are also listed.