NPR | Cheap Alzheimer's test made from peanut butter and ruler CBS News About 5.2 million Americans have Alzheimer's or another form of dementia, according to the Alzheimer's Association, with about 13.8 million cases expected by 2050. The disease is marked by declines in cognitive function and memory skills, and people ... Alzheimer's on the nose Researchers use peanut butter to detect Alzheimer's disease Alzheimer's Smell Test Uses Peanut Butter To Sniff Out The Disease |