揭秘：我们的眼皮为什么会跳？_时事

揭秘：我们的眼皮为什么会跳？

眼皮跳动是一种自发的肌肉收缩，不伴有肌肉萎缩或肌肉无力。你可能经历过膝盖或者肘部的肌肉无意识抽搐。同样的情况也会发生在眼轮匝肌（眼睑附近的肌肉）上。

Eye spams are typically unilateral, occurring in one of the lower eyelids. Sometimes, both eyelids may be involved but the fascicular contractions of each eyelid is independent of each other. The transient and intermittent twitching is semi-rhythmic at a rate of 3-8 Hz.

眼皮抽搐通常出现在某一边的下眼睑上。有时候可能会涉及两边的眼睑，不过两边眼睑的肌肉收缩彼此独立。这种短暂且间歇性抽搐的频率在3-8赫兹。

In the majority of cases, eyelid spasms are no cause for concern. These are usually self-limiting and benign, so medical intervention is typically unnecessary. Very rarely, eyelid myokymia may occur as a precursor of hemifacial spasm, blepharospasm, Meige syndrome, spastic-paretic facial contracture, and multiple sclerosis.

在大部分情况下，眼皮抽搐没什么好担心的。它们通常是一种自我限制的良性问题，没必要去医院检查。但在很罕见的情况下，肌纤维颤搐可能是面肌痉挛、眼睑痉挛、麦杰综合征、痉挛性麻痹面部抽搐以及多发性硬化的前兆。

下面是眼皮跳最常见的原因。

Stress 压力

This is the number-one reason for a twitching eye, according to ophthalmologists. When we’re under a lot of pressure, the body releases stress hormones (cortisol) which triggers a “fight or flight” response. One immediate consequence is muscle arousal, which may affect eyelid muscles as well. This may be a good time to see your friends, unwind, or meditate in order to reduce the stress that might be causing the twitching eye.