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Ageusia (from negative prefix a-and Ancient Greek γεῦσις geûsis 'taste') is the loss of taste functions of the tongue, particularly the inability to detect sweetness, sourness, bitterness, saltiness, and umami (meaning 'savory taste'). It is sometimes confused with anosmia – a loss of the sense of smell.
An altered sense of taste has effects on food choice and intake, and can lead to weight loss, malnutrition, impaired immunity, and a decline in health. [47] Patients diagnosed with dysgeusia must use caution when adding sugar and salt to food, and must be sure not to overcompensate for their lack of taste with excess amounts. [ 47 ]
In contrast, a permanent loss of smell may be caused by death of olfactory receptor neurons in the nose or by brain injury in which there is damage to the olfactory nerve or damage to brain areas that process smell (see olfactory system). The lack of the sense of smell at birth, usually due to genetic factors, is referred to as congenital anosmia.
Anosmia is the inability to perceive odor, or in other words a lack of functioning olfaction.Many patients may experience unilateral or bilateral anosmia. A temporary loss of smell can be caused by a blocked nose or infection. In contrast, a permanent loss of smell may be caused by death of olfactory receptor neurons in the nose or by brain injury in which there is damage to the
The 25-year-old pharmacy worker was happy to be prodded and poked at the hospital in Nice, in southern France, to advance her increasingly pressing quest to recover her sense of smell.
Researchers are exploring gene therapy approaches to restore the sense of smell in individuals with congenital anosmia. [34] Fifth Sense is a UK-based charity dedicated to supporting people with smell and taste disorders. They collaborate with researchers and institutions to advance the understanding of congenital anosmia.
GLP-1 drugs like Ozempic and Wegovy may affect your sense of taste and the way your brain responds to sweet foods. Tom Werner/Getty Images This article originally appeared on Healthline
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