美国科学60秒 SSS 2013-07-29
时间：2018-12-24 作者：英语课 分类：Scientific American(七)月
The lunar cycle affects the night sky, the tides, and even the fertility of certain marine 1 species. And it turns out, we can add your shuteye to the list. According to a new study, humans sleep poorly on nights near full moon. The work is published in the journal Current Biology. To test the moon's effect, 33 adult volunteers of both sexes and various ages spent several nights in the sleep lab. As they dozed 2, researchers monitered their brain activity, eye movements, and hormone 3 levels. On nights closer to a full moon, the subjects took an average of five minutes longer to fall asleep and slept for 20 minutes less. In addition, brain activity decreased by 30% during the sleep stage that the brains normally uses to recover from its daylight work. And levels of melatonin, the horomone that helps regulate sleep cycles, dropped. On these nights, the sleepers 4 complained of poor sleep quality, even though they were unaware 5 of the lunar cycle. On the bright side, not a single participant turned into a werewolf in this cohort.
- Marine creatures are those which live in the sea. 海洋生物是生存在海里的生物。
- When the war broke out,he volunteered for the Marine Corps.战争爆发时，他自愿参加了海军陆战队。
- He boozed till daylight and dozed into the afternoon. 他喝了个通霄，昏沉沉地一直睡到下午。 来自《现代英汉综合大词典》
- I dozed off during the soporific music. 我听到这催人入睡的音乐，便不知不觉打起盹儿来了。 来自《简明英汉词典》
- Hormone implants are used as growth boosters.激素植入物被用作生长辅助剂。
- This hormone interacts closely with other hormones in the body.这种荷尔蒙与体內其他荷尔蒙紧密地相互作用。