V2EX melatonin

Melatonin

定义 Definition

Melatonin(褪黑素)是一种由大脑松果体分泌的激素,主要负责调节人体的睡眠-觉醒周期(昼夜节律)。它在黑暗环境中分泌增加,帮助人体进入睡眠状态。褪黑素也常被制成补充剂,用于改善失眠和调整时差。

发音 Pronunciation

/mltonn/

例句 Examples

I take melatonin every night to help me fall asleep faster.
我每晚服用褪黑素来帮助自己更快入睡。

Research suggests that exposure to blue light from screens before bedtime can suppress the body's natural production of melatonin, making it harder to fall asleep.
研究表明,睡前接触屏幕发出的蓝光会抑制人体天然褪黑素的分泌,从而使入睡变得更加困难。

词源 Etymology

Melatonin 一词由美国皮肤科医生亚伦勒纳(Aaron Lerner)于1958年发现并命名。该词由希腊语词根 melas(意为"黑色、深色")和 serotonin(血清素,褪黑素的生物合成前体)组合而成。之所以与"黑色"相关,是因为这种激素最初被发现能使青蛙的皮肤颜色变浅它作用于黑色素细胞(melanocyte),因此以 mela- 为前缀命名。

相关词汇 Related Words

文学与学术引用 Literary & Academic References

  • 马修沃克(Matthew Walker)的《Why We Sleep》(《我们为什么要睡觉》)中详细讨论了褪黑素在调节睡眠周期中的作用,是了解该词科学背景的经典读物。
  • 比尔布莱森(Bill Bryson)的《The Body: A Guide for Occupants》(《人体简史》)中也介绍了褪黑素与人体生物钟之间的关系。
  • 在大量神经科学与内分泌学文献中,melatonin 是研究昼夜节律(circadian rhythm)的核心术语之一。
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