英文书摘精选 Why Do Dark Circles Form Under My Eyes?为何会形成黑眼圈?

（单词翻译）

It’s eleven o’clock Sunday morning, and you’ve just woken up after a late night of carousing¹. You stumble out of bed, brace² yourself on the bathroom sink and blink into the mirror.
现在是周日上午11点，而你刚从前一晚的狂欢过后醒来。你跌跌撞撞地走下床，双手撑在盥洗台上，睡眼惺忪地看向镜子。

There, under your eyes, are dark, puffy patches that make you look like an NFL linebacker. I need more sleep, you think, fingering the dark spots. And so you stumble back to bed.
看到了吗，你眼睛下面那深色浮肿的眼袋，让你看起来像美国橄榄球联盟的后卫队员。用手抚摸着黑眼袋，你想，我需要更多的睡眠。于是你又踉跄着回到床上。

Do I Need More Sleep?
我需要更多睡眠吗？

You may indeed need to sleep a bit longer, but despite the common misconception, dark circles and puffiness under or around your eyes appear to have little to do with lack of sleep.
也许你的确需要多睡一会儿，尽管有着普遍的误解，但眼周或眼底的黑眼圈和浮肿似乎与睡眠不足没有太大的关系。

In fact, what seems to be a fairly common and hence supposedly explainable phenomenon remains³ something of a mystery to scientists.
事实上，这个看起来相当容易解释的常见现象对科学家们来说却仍然是个谜。

Mystery
谜题

What scientists do know is that the skin under the eyes is very thin and sensitive. When for a variety of reasons blood and other fluids accumulate in the area under your eyes, the delicacy⁴ of the skin makes the fluid’s color partly visible. This is what appears to account for the dark patches.
科学家们所知道的是，眼底的皮肤非常薄，非常敏感。当由于种种原因，血液和其他液体在眼底部位积聚时，这层细腻的皮肤就会使得液体的颜色浮现出来。这似乎才是黑眼圈形成的原因。

Allergies⁵ may also be to blame. An allergic⁶ reaction can cause cells under the skin of the eyes to release histamine, a chemical that causes fluid accumulation and swelling⁷. This is what appears to cause puffy eyes.
过敏也是可能的原因之一。过敏反应导致眼底皮肤细胞释放出组胺，这种化学物质会引起积液和皮肤肿胀。这似乎才是眼袋形成的原因。

And finally, there is heredity. Do your parents have dark circles under their eyes? If so, you may have found the source for your own dark circles.
最后还有遗传因素的影响。你的父母是否有黑眼圈？如果有，也许你就能够找到你有黑眼圈的原因。