![]() Concussion or head injury: Up to half of people who have mild concussions will temporarily lose their sense of smell.That’s why COVID causes loss of smell early on, even before congestion occurs, and why people with COVID can experience loss of smell without congestion. With COVID, the infection actually attacks the olfactory receptors. The cold or flu might lessen your sense of smell because congestion blocks your nose. COVID-19: COVID-19 affects taste and smell differently from other infections.This is also why nasal polyps or other obstructions can impact your sense of smell. If your nose is blocked, because of congestion caused by allergies or illness like the flu, a cold, or a sinus infection, it can stop smells from reaching those sensors. Nasal congestion or obstruction: The receptors for your factory system, or sense of smell, are located in the upper nose.Estrogen and progesterone are both linked to the olfactory system, so as hormones levels change-throughout a menstrual cycle, pregnancy, or menopause-they affect how you perceive scent. Hormone changes: Hormones can affect your sense of smell, particularly for cisgender females.Taste buds also begin dying off after age 50. Since the perception of smell and taste are connected, changes to your olfactory system might affect how you perceive taste. Generally, about 2% of people have issues with smell, but about 25% of men and 11% of women in their 60s have a smell disorder. Age: The loss of taste, and in particular smell, can decrease or change as you age. ![]()
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