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[mis à jour le 17 July 2007 à 14h08]
According to an American study, elderly people who have trouble identifying smells could be predisposed to cognitive disorders… possibly signalling impending Alzheimer’s disease.
Professor Robert Wilson and his team at Rush University Medical Center in Chicago monitored 589 elderly people with an average age of 80. At the start of the study in 1997, none of these individuals showed any cognitive decline. Each year for 5 years the participants had to undergo olfactory tests. At the same time they underwent neurological examinations and other tests in order to assess their cognitive functions.
“We noted a very clear correlation between poor test results identifying smells and a drop in intellectual performance, such as memory loss or difficulty reasoning”, Professor Wilson points out. He also concludes that “problems identifying smells could constitute one of the early signs of Alzheimer’s Disease”.
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