dementia

A very rare genetic mutation causes some people to develop Alzheimer's in their 30s. It also makes these people the ideal candidates for tests of potential Alzheimer's drugs.

By targeting the process that creates toxic clumps of protein in brain cells, scientists hope to help not just Alzheimer's patients, but perhaps also people with Lewy body dementia and Parkinson's.

Things like activity trackers and sensors might make it easier to keep people with dementia safe and help caregivers. Researchers are going to test that idea in the real world.

Sometimes Greg O'Brien gets a tingling in the back of his brain that tells him a hallucination is coming. Lions. Spiders. Birds. Sometimes the creatures are friendly. Too often, they're not.

A jury in Iowa acquitted a man who had been criminally charged for having sex with his wife, who had Alzheimer's. Very few care facilities have policies on dementia, sex and consent.

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.

Mary Catherine O'Brien says when she married her husband, Greg, in 1977, he was funny and outgoing. Alzheimer's disease has stolen much of that, she says, but the two are closer than ever.