单词melatonin
n.: 退黑激素
网络: 褪黑激素；褪黑素；褪黑色素
退黑激素:
a hormone that affects skin colour and is thought to regulate the reproductive cycle
N-乙酰-5-甲氧基色胺
抗黑变激素
松果体褪黑激素
As well as being a stimulant, caffeine interrupts the flow of melatonin, the brain hormone that sends people into a sleep.
作为一个兴奋剂，咖啡因打断了褪黑激素的流入，大脑激素使人们进入睡眠。
The lack of sunshine seems to help us produce melatonin, makes us feel sluggish, more lethargic. We start to eat a little bit more. . .
日照阳光不足似乎会帮助我们身体产生褪黑激素，会使我们感觉更慵懒更嗜睡。
For a start, he said, melatonin levels were not a good way to predict how much sleep someone will get.
他首先表示褪黑素水平并不能很好的反映睡眠时间的长短。
Such a light appears to interfere with secretion of the hormone melatonin, which helps let the body know it is night time.
这是因为灯会干扰大脑中的黑激素，而黑激素传递信号让身体知道什么时候是夜晚。
Melatonin is produced by the pineal gland and is a key signal in the circadian rhythm of the body.
褪黑素是由松果腺和是一个关键的信号在昼夜节律的机构。
They pinpointed a common variation in the gene called MTNR1B, which codes for one of the body"s two known melatonin receptors.
最后研究人员在一个名为MTNR1B的基因——负责编码已知两种人体退黑激素受体中的一种——中找到了一个常见的变异。
He said sunlight raises the level of melatonin in a person "s cerebral spinal fluid, which in turn raises a person"s spirits.
他说阳光提高一个人脑脊液中的褪黑激素，它能提高精神。
You"ll get a dose of natural sunlight first thing in the morning, which suppresses melatonin in the brain and signals the body to wake up.
第一束自然光进来时会抑制大脑中的褪黑激素，向身体发出“醒来”信号。
If you do take melatonin, however, think about taking a cab to your hotel and picking up a rental car at the hotel rather than the airport.
但是如果选择服用褪黑激素，最好打车到你的酒店，在酒店租车，而不要在机场租。
The research shows that the body produces less of the sleep hormone melatonin when exposed to light.
这份研究显示，身体暴露在灯光下时，身体制造的睡眠荷尔蒙褪黑激素较少。