Medical research

Researchers find bitter taste receptors on human hearts

A team of University of Queensland researchers is investigating the surprising discovery that smell and taste receptors normally found in the nose and mouth can also be present on the human heart.

Diseases, Conditions, Syndromes

Physician advises 'follow your nose' to early COVID-19 diagnosis

Col. (Dr.) Michael Xydakis, an ear, nose and throat surgeon in the Air Force Research Laboratory, assembled a multi-national team of nine other medical professionals, who consolidated their front-line observations and recommendations ...

Diseases, Conditions, Syndromes

New AI diagnostic can predict COVID-19 without testing

Researchers at King's College London, Massachusetts General Hospital and health science company ZOE have developed an artificial intelligence diagnostic that can predict whether someone is likely to have COVID-19 based on ...

Health

The chemistry of salt in the kitchen

When we say "salt", we usually mean the stuff we sprinkle on our chips, which is sodium chloride (NaCl). But, technically speaking, this is just one example of a salt.

Neuroscience

How many senses do humans really have?

Ask even the youngest schoolchild how many senses we have and she'll tell you five—sight, sound, smell, taste and touch.

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Taste

Taste (or, more formally, gustation) is a form of direct chemoreception and is one of the traditional five senses. It refers to the ability to detect the flavor of substances such as food, certain minerals, and poisons. In humans and many other vertebrate animals the sense of taste partners with the less direct sense of smell, in the brain's perception of flavor. In the West, experts traditionally identified four taste sensations: sweet, salty, sour, and bitter. Eastern experts traditionally identified a fifth, called umami (savory). More recently, psychophysicists and neuroscientists have suggested other taste categories (umami and fatty acid taste most prominently, as well as the sensation of metallic and water tastes, although the latter is commonly disregarded due to the phenomenon of taste adaptation.[citation needed]) Taste is a sensory function of the central nervous system. The receptor cells for taste in humans are found on the surface of the tongue, along the soft palate, and in the epithelium of the pharynx and epiglottis.

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