Doing so inevitably changes taste or texture and that would put off regular buyers.

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The Chicago parts manufacturer is benefiting from changes in taste among carmakers and car buyers.

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Like all collectibles, buyers' taste in vintage cars changes over time.

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People can also get fever, fatigue, cough, changes in ability to taste and smell, ear pressure, headache and bad breath.

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After all, loyal fans of blended Scotch whiskies, which are made differently every year but are always supposed to taste exactly the same, often complain often over seemingly imperceptible changes, and even changes in the water used.

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Sudden changes in mood or personality, visual hallucinations and alternations in smell, taste or tactile senses could signal a brain tumor or other abnormality.

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In the past 2, 000-3, 000 years, for example, Europeans have undergone changes in the gene for a protein that moves potassium ions in and out of nerve cells and taste buds.

ECONOMIST: Human evolution