Researchers have found that you can use peanut butter to detect Alzheimer's!?

Researchers at the University of Florida have found an interesting, if bizarre, way to diagnose Alzheimer's: Sniffing peanut butter.

What they've found is that patients in cognitive decline often lose their sense of smell first. So they have people smell peanut butter with each nostril separately.

They found that people with a confirmed diagnosis of early-stage Alzheimer's could smell fine with their right nostril, but not their left. Those people were able to smell the peanut butter 10cm farther away with their right nostril.