Can I make a clarification. People frequently complain of losing taste and smell. Most of the taste of our food is related to its smell. Pure taste is conducted by the taste buds on the tongue which can detect sweet, sour, bitter, salt and umami. There may be others but scientists argue about this. If you can taste bitterness you have not lost your sense of taste. Smell covers everything else and lost of that sense is known as anosmia and often occurs with bad colds or associated viral infections but can be caused by trauma as well. The best demonstration of difference between taste and smell was by my biology teacher more than 60 years who after plugging the nose of one of my classmates (humanely) gave him apple and potato to chew. He couldn't tell the difference.
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