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Does aging affect smell?: The biological and health impacts of olfactory decline

Over 50% of people between the ages of 65 and 80 experience a quantifiable loss of their sense of smell. The decline, medically known as presbyosmia, is a common and normal part of growing older, but it is not a uniform or harmless process and can have significant health implications. This natural deterioration answers the question: **Does aging affect smell?**