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