Small undetected strokes are not uncommon in older patients. These incidences may be contributing to an increased risk of dementia and Alzheimer's disease in such patients.

Could a good night's sleep be a key to reducing the risk of developing Alzheimer's disease? It's still speculation, but a link between sleep and the rise and fall of a marker for the disease have given scientists hope.

A proposed change in guidelines for diagnosing Alzheimer's disease means patients will be examined for signs of the disease after their death even if they never exhibited symptoms suggesting the diagnosis.

Several studies over the summer suggested that common drugs taken by the elderly including antidepressants and antihistamines might cause additional cognitive impairment in those suffering from dementia.

As many as 36 million worldwide are suffering from some type of dementia, yet about three quarters of them have not been diagnosed, partly because it is often falsely considered a normal part of aging.

A surprising therapy may help slow the progression of Alzheimer's disease. Using a daily insulin nasal spray may curb symptoms and even improve cognition and function for those with the neurodegenerative disease.

It's not known what causes the death of brain cells in Alzheimer's disease, but there are plenty of theories. A new explanation suggests it may be caused by an overabundance of blood vessels.

Doctors may soon be able to predict who is at risk for Alzheimer's disease by pinpointing chemical changes in the brain many years before symptoms develop.

Fish oil has become a popular health supplement in recent years. It may be with good reason. Fish oil supplements appear to offer benefits for brain health and aging.

Don't hesitate to lift your glass for a toast. Social drinking can significantly reduce your chance of developing Alzheimer's disease or another form of dementia.