Other top stories

UPDATE: Matthew Perry Died of 'Acute Effects of Ketamine'

The Weekly Mind Reader: The Psychological Burden of ALS

How One Woman's Genetic Anomaly Shielded Her Against Alzheimer's

'Dear Abby' Helps Scientist Recruit Alzheimer's Research Volunteers

Dementia in One Twin Tied to Shorter Lifespan for Both Twins

Alexithymia 'Emotional Color-Blindness' Can Challenge Relationships