Ability To Smell Food Through Mouth May Decline With Age
Umer Jamshaid Published September 12, 2018 | 01:09 AM
ISLAMABAD, (UrduPoint / Pakistan Point News - 11th Sep, 2018 ) :Old age brings with it many health problems including the loss of vision, hearing and taste, and a new study says that the ability to smell the food through the mouth decreases with age.
Human beings not only pick up aromas through the nose, but also through the mouth while chewing the food. Retronasal smell, which is smelling from behind the nose comes into play when food is chewed and volatile molecules are released in the process.
These then drift through the mouth to the back of the nose where the odour is detected.
But, unfortunately, for some, this ability decreases with age, said Tyler Flaherty from Oregon State University in the US.
This might be, among other reasons, because of the prolonged use of medication or physical and mental changes associated with older age, the researchers noted in the study published in the journal Chemosensory Perception.
One's ability to pick up smells through the mouth could also be influenced by, for instance, the use of dentures.
The results revealed that many of the older participants found it difficult to pick out specific odours.
However, younger participants fared better when individual smells where presented to them in combination with other tastes.
"Generally, large individual differences in odour responsiveness become even greater when ageing is considered as a factor," Flaherty said.
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