It is no secret that our senses wane as we age. What may taste scaldingly spicy one year might be only mildly hot the next, or you may find that the unbearable stench of the dumpster around the street is not so unbearable any longer. Here we discuss some reasons for change in smell and taste due to aging.
Why Are Smell and Taste Important?
Most people focus on retaining their sight and hearing into old age, taking other senses for granted when in fact, these senses are equally important, as the following points depict:
Typically taste bud cells are replaced every week or two, but after age 50, these cells begin to lose their sensitivity and ability to regenerate. Olfactory nerve endings and mucus production in the nose may also decline, weakening one’s sense of smell. When taste and smell are impaired, a person may change his or her eating habits, whether consciously or unconsciously. Some people may eat too little and lose weight, while others may eat too much and gain weight. This may seem like a mere inconvenience, but the dietary changes that result from a distorted sense of taste can be a serious risk factor for heart disease, diabetes, stroke and other illnesses that require sticking to a specific diet.
The Mechanism of Change
Taste: The average person has approximately 9,000 taste buds distributed throughout the tongue, the throat, the esophagus and the roof of the mouth. These buds regenerate every 10 days, working as taste receptors to deliver sensations to and from the brain to identify 5 basic tastes: sweet, salty, sour, bitter, and savory. However, after the ages of 40-50 in women and 50-60 in men, the number of taste buds decreases, and in some cases the cell membranes of neurons transmitting taste signals between the brain and taste receptors becomes damaged, leading to a diminished sense of taste that dwindles with age.
Smell: Similarly, sensory cells located high in the nose lining can lose function, either due to gradual cell aging, or reduced mucus production (mucus helps in retention of scents in the nose for detection by the sensory cells). Most individuals begin losing the ability to differentiate between scents after 70, which also results in a loss of taste and appetite, since the two senses are interlinked.
Other Causes
In addition to gradual age-related decline, the following external factors may also cause a temporary or permanent reduction in smell and taste:
The Solution
While age-related sensory decline is irreversible, multiple measures can be taken to adapt to a reduced sense of smell and taste:
While sensory loss of any kind can be disturbing, it does not have to be disruptive or majorly life-altering. If you observe any of the reasons for change in smell and taste due to aging, consult your doctor to locate the root cause. You can also book an appointment with a top ENT Specialist in Lahore, Karachi and Islamabad through oladoc.com, or call our helpline at 042-3890-0939 for assistance to find the RIGHT doctor for your sensory concerns.
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