Dr. Richard Isaacson came up with an at-home smell test to determine how healthy your brain is. Sense of smell is one of the best early detection tools for Alzheimer's because it can point to possible neurodegeneration. Have a friend or family member administer the test to you. First they must blindfold you, and then you must smell mouthwash, coffee grounds, cocoa powder, and liquid soap.
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This quiz was recently featured on Dr. Oz Food Investigation: Is Your Greek Yogurt a Fake?