English(EN) A Biologist Explains Why Humans Have Earwax (Hint: Some People Can’t Make It)

生物学家解释耳垢功能和基因变异

作者 PulseAugur 编辑部 · [1 个来源] · 2026-07-03 12:00

耳垢，也称为耵聍，是由耳道内的腺体产生的保护性物质，而非废物。它能阻止微生物生长，吸附碎屑，并防水，下颌运动有助于其自然排出。基因变异，主要与ABCC11基因相关，决定了个体产生粘稠湿润的耳垢还是干燥鳞屑状的耳垢，这一特征具有明显的地理分布。 AI

排序理由文章解释了一种常见身体物质的生物学功能和基因变异，引用了科学研究。

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Newsworthiness bucket: Commentary; 文章解释了一种常见身体物质的生物学功能和基因变异，引用了科学研究。
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AI-industry relevance: Low; Off-topic or adjacent — cluster remains reachable but doesn't surface in AI-industry rankings.
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Forbes — Innovation TIER_1 English(EN) · Scott Travers, Contributor · 2026-07-03 12:00

一位生物学家解释了为什么人类会有耳垢（提示：有些人无法产生耳垢）

Earwax isn't dirt — it's an antimicrobial secretion split into two genetic types, tied to hearing loss risk, and able to flag a rare disease in newborns.