The most common form of dementia among older people is Alzheimer’s disease.  It usually begins after the age of 60. Find out more here.

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.

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.

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 cases.

Most scientists don't think aluminium, from saucepans or other sources, causes Alzheimer's disease. Here's a considered discussion of this topic.

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

Our overall health habits can help reduce the risk of age-related illnesses. Here's more information on what you can do.