Smell Loss May Predict Cognitive Decline in Senior People

A new study from the University of Chicago found that those who could not identify at least 4 out of 5 ordinary odors were more than twice more likely to develop dementia within the next five years.cognitive decline

The long-term study included about 3,000 senior adults, aged between 57 and 85, among whom approximately 14% could name just three, 5% could identify only two, 2% could name just one, and 1% of the study participants were not able to identify any odor.

The study's lead author Jayant M. Pinto, MD, a professor of surgery at the University of Chicago and ENT specialist, says: “These results show that the sense of smell is closely connected with brain function and health. We think smell ability specifically, but also sensory function more broadly may be an important early sign, marking people at greater risk for dementia.”

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