Usually you can tell when you have a disease because you feel the symptoms—a runny nose might mean you've got a cold, while a flutter in your chest could mean something related to your heart. But for some diseases, a doctor can diagnose you with as little as a whiff of your body odor. Learn about three diseases that make you smell really weird—and why.
3 Diseases That Make You Stink
Does Disease Have A Smell?
Smelling Alzheimer's Disease with Peanut Butter
Key Facts In This Video
The olfactory cortex (part of the brain that processes smell) is the first area of the brain to deteriorate in Alzheimer's. 00:32
If one nostril can detect smell much stronger than the other, it may be a sign of Alzheimer's. 01:12
Peanut butter is a smell that is not typically lost as people age. 02:02
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