A de­men­tia smell test

The Week (US) - - News 19 -

Peo­ple with a poor sense of smell may be more likely to de­velop de­men­tia, a new study sug­gests. Re­searchers at the Univer­sity of Chicago tested how well 2,906 men and women be­tween the ages of 57 and 85 could de­tect five dif­fer­ent scents: pep­per­mint, fish, or­ange, rose, and leather. Most of the par­tic­i­pants were able to iden­tify four to five of the smells, but 22 per­cent couldn’t. Five years later, the re­searchers found that those who didn’t pick up at least four of the odors were more than twice as likely to have de­men­tia—even if

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