If warding off Alzheimer's was as easy as taking a pill – wouldn't we all grab a glass of water and get medicated? The pills are called statins, but not everyone is on board with the idea of prescribing them to people as prevention.

A Dutch woman who reached 115 years of age and remained mentally sharp throughout life had a healthy brain when she died. The new study suggests Alzheimer's disease and other forms of dementia are not inevitable, as had been suspected.

Retired Justice Sandra Day O'Connor spoke publicly for the first time Wednesday about her husband's Alzheimer's. O'Connor told senators that the disease takes a "staggering toll" on families and more research dollars and treatment options.