Alzheimer's

Only about half of Medicare patients are told of the diagnosis by their doctor, a study finds. That compares to 90 percent of patients diagnosed with cancer.

Corinne Lasmezas began her career studying a disease that destroys the brains of cattle. Now she's using what she learned to search for drugs that can stop human brain diseases.

Greg O'Brien talks about how his life has changed in the five years since he was diagnosed with early-onset Alzheimer's disease. "More and more I don't recognize people," he says.

The staff's goal was to reduce the prescription of antipsychotic drugs by 20 percent. In the first year, they cut use by 97 percent. How? By addressing the real reasons for agitation and aggression.

Faulty forms of the brain protein tau trigger tangles inside and outside brain cells of Alzheimer's patients. Scientists say figuring out how to stop bad tau's spread from cell to cell might be key.

Age-related fumbles of memory are often feared as early signs of Alzheimer's dementia, but recent research confirms an important difference. The underlying biology of the two sorts of memory loss aren't the same. And the age-related form may be reversible someday.