Link found between Parkinsons and odor

Researchers from Hawaii studied more than 2,200 men who'd been given an odor identification test.

Those who perfomred worst on the test were five times more likely to develop Parkinsons than those who had the best scores.

And scientists say sense of smell seemed to disappear as much as four years before the start of more common signs of Parkinsons, such as tremors and difficulty walking.

Experts say if you experience sudden loss of smell, you should talk to your doctor.


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