Scientists have developed a test for Parkinson’s disease thanks to a grandmother’s super sense of smell.Joy Milne, 72, was able to sniff out Parkinson’s in her husband 12 years before he was diagnosed, because the way he smelled changed.She has been a major asset to scientists, as a ‘super-smeller’, who can diagnose strangers who have the disease simply by sniffing T-shirts they have been wearing.
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