Alzheimer's disease is the most common type of dementia. Symptoms of Alzheimer's, including early-onset Alzheimer's, include problems with memory, judgment, and thinking, which makes it hard to work or take part in day-to-day life. As the stages of Alzheimer's progress, memory loss and other signs of Alzheimer's become more apparent. Many people find help with Alzheimer's drugs, but there is no cure for this form of dementia.
What Is Alzheimer's Disease?
What is Dementia?
Dementia is not a disease itself. It's a group of symptoms that are caused by various diseases or conditions. Read how dementia develops, what causes it, and which conditions are treatable.

What Is Alzheimer's?
The most common form of dementia among older people is Alzheimer’s disease. About 4.5 million Americans suffer from this condition, which usually begins after age 60.

Alzheimer's Disease Illustration
Mental decline in Alzheimer’s disease shows up first as loss of memory function. Next to be affected are emotions and inhibitions. Brain lesions, called amyloid plaques and tangles, accumulate, causing a declining ability to cope with everyday life as brain cells die. Read more.

Is Alzheimer's Genetic?
Several factors contribute to the development of Alzheimer’s disease. Family history is just one of them. Click here to see why scientists suspect that genetics may play a role in many AD cases.

Aluminum and Alzheimer's
Most scientists don't think aluminum -- from pans or other sources -- causes Alzheimer's disease. Here's a thoughtful discussion of this topic.

Are You at Risk?
Risk for Alzheimer's
The number of people with the disease doubles every 5 years beyond age 65. Are you at risk of Alzheimer's disease? Get the facts here.

Down Syndrome and Alzheimer's
People with Down Syndrome can experience premature aging. Because of this, they’re at a higher risk for age-related health conditions like Alzheimer's. Click here.

Alzheimer's Genetic Risk
Genes aren't destiny. But much of a person's risk for Alzheimer's disease is inherited. Click here to find out what researchers are learning.

Obesity and Alzheimer's
Today’s obesity epidemic may be tomorrow’s Alzheimer’s epidemic. The high insulin levels seen in obese people may mean a high risk of Alzheimer's disease. People with diabetes are at a particularly high risk.

Genetic risk: Apo E gene
A risk factor gene already identified makes one form of a protein called apolipoprotein E (ApoE). Having this gene doesn’t mean you will definitely develop AD; it only increases the risk. Read more.

Dementia Prevention: Brain Exercise
Leisure activities such as reading, playing board games, playing musical instruments, and dancing are associated with a reduced risk of dementia. Read more about brain fitness.

Preventing Alzheimer's
Our overall health habits can help reduce the risk of age-related illnesses. Here's what the National Institute on Aging has to say about preventing Alzheimer's disease