While no one knows for certain what causes us to age, prevailing wisdom suggests it's a buildup of stresses and the cumulative effects of disease. The surprising results of a recent study, however, say otherwise.

Early-stage Alzheimer's patients who maintained better physical fitness also have been shown to have bigger, more fit brains, researchers announced.

A new questionnaire that focuses on the everyday functions of the elderly and those with memory problems eventually could help with screening for dementia, according to a report in July's issue of the journal Neuropsychology.

Women over 90 are twice as likely to suffer from dementia than men of that age group, according to a new study.

The longer a person has type 2 diabetes, the more substantial and steeper his cognitive decline later in life, a new report in the Journal of the American Geriatric Association said.

New research has potentially linked Alzheimer's disease with calcium dysregulation, a theory that had been proposed by several research groups, but never been proven.

Drugs used to potentially treat Alzheimer's disease may lead to advancements in the treatment of other afflictions, according to the Mayo Clinic.

Nursing home residents are lashing out at each other verbally, physically and in other ways more often than previously believed, according to Cornell University-based researchers.

Calls to implement a nationwide "Silver Alert" system to notify the public of missing seniors are gaining legislative support, according to a news report.

A new vaccine for Alzheimer's disease offers new hope in the laboratories of the University of Rochester Medical Center.