Apart from these factors, some elderly individuals are more prone to developing unpleasant odors due to conditions such as periodontal diseases and chronic illnesses.
However, many elderly people cannot smell the odor on themselves. Why is that?
The olfactory judgment index is the odor threshold, with lower thresholds indicating more sensitive noses. Generally, the odor threshold for elderly individuals is 2-15 times higher than that of younger people, which is related to the weakening of olfactory function as people age.
Furthermore, human olfaction has an adaptive nature. When exposed to one's own smell for an extended period, the nose adapts, becoming less sensitive over time.
