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This is a season when becteria sinus infections run rampant1, but some people are better able to ward2 off that malady3. And they can be identified by their taste buds, because those of us who can better detect bitter flavors may also be better equipped to fight off upper respiratory tract4 infections. The finding is in the Journal of Clinical Investigation5.
It turns out that those bitter taste receptors aren’t just in our mouths. They are also in our noses. Being better able to sense bitterness may be a first line of defense6 against becteria. That’s because those becteria actually tastes bitter to us. So when taste receptors in our airways7 sense a bitter flavor, they rolled out the defenses.
Cilia lining8 our sinuses beat faster, to sweep away germs. And becteria killing9 nitric oxide10, gets released into our nasal cavities. Better bitter sensing, means a bigger response. It’s one reason researchers at the Monell Chemical Sense Center are trying to come up with a universal taste test, a standardised measurement of how well we sense flavours. Because one key to living healthier, could be on the tip of your tongue.
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1 rampant | |
adj.(植物)蔓生的;狂暴的,无约束的 | |
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2 ward | |
n.守卫,监护,病房,行政区,由监护人或法院保护的人(尤指儿童);vt.守护,躲开 | |
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3 malady | |
n.病,疾病(通常做比喻) | |
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4 tract | |
n.传单,小册子,大片(土地或森林) | |
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5 investigation | |
n.调查,调查研究 | |
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6 defense | |
n.防御,保卫;[pl.]防务工事;辩护,答辩 | |
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7 AIRWAYS | |
航空公司 | |
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8 lining | |
n.衬里,衬料 | |
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9 killing | |
n.巨额利润;突然赚大钱,发大财 | |
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10 oxide | |
n.氧化物 | |
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