david letterman guest Celebrated zookeeper and Letterman guest Jack Hanna retiring due to dementia Kevin Reome

AARP Legendary singer Tony Bennett has Alzheimer's Gina Loukareas

Get out the tissues Former prima ballerina with Alzheimer's remembers her Swan Lake moves by listening to its music Rusty Blazenhoff

olive oil Extra virgin olive oil prevented build-up of toxic proteins in brains of mice Mark Frauenfelder

brain chemistry New study discovers why coffee can protect the brain, and it has to do with the kind of roast you drink Carla Sinclair

alzheimer's Vaccine could prevent Alzheimer's plaque from building up Mark Frauenfelder