手机版

Sleep

阅读 :

  Sleet is part of a person's daily activity cycle. There are several different stages of sleep, and they too occur in cycles. If you are an average sleeper, your sleep cycle is as follows. When you fist drift off into slumber, your eyes will roll about a bit, you temperature will drop slightly, your muscles will relax, and your breathing well slow and become quite regular. Your brain waves slow and become quite regular. Your brain waves slow down a bit too, with the alpha rhythm of rather fast waves 1 sleep. For the next half hour or so, as you relax more and more, you will drift down through stage 2 and stage 3 sleep. The lower your stage of sleep. slower your brain waves will be. Then about 40to 69 minutes after you lose consciousness you will have reached the deepest sleep of all. Your brain will show the large slow waves that are known as the delta rhythm. This is stage 4 sleep. You do not remain at this deep fourth stage all night long, but instead about 80 minutes after you fall into slumber.

更多 英文美文英语美文英文短文英语短文,请继续关注 英语作文大全

文学 散文
本文标题:Sleep - 英语短文_英语美文_英文美文
本文地址:http://www.dioenglish.com/writing/essay/42947.html

上一篇:Bacteria by 下一篇:Cells and Temperature

相关文章

  • 浪漫爱情万古长青

    romance does not necessarily have to fade away in the long-term relationships and transform into a friendship-type love, accordi...

    2018-10-29 英语短文
  • 英汉英语美文:What is immortal

    To see the golden sun and the azure sky, the outstretched ocean, to walk upon the green earth, and to be a lord of a thousand creatures to look down giddy precipices or over distant flower...

    2018-11-23 英语短文
  • 有线的自由

    风筝上天让我经历逆境,体验束缚的滋味,并定下规则约束我们,让我们从中成长起来,获得人生的力量…… One windy spring day, I observed young people having fun using the wind to fly their kites. Multicolored cre...

    2019-01-31 英语短文
  • To Helen

    致海伦 To Helenby Edgar A...

    2019-01-25 英语短文
  • Once upon a time

      there was an island where all the feelings lived: Happiness, Sadness, Knowledge, and all the others, including Love.  One day it was announced to all the feelings that the island was going t...

    2018-12-14 英语短文
  • 眼睛会说话 Eyes Can Speak

    Much meaning can be conveyed, clearly, with our eyes, so it is often said that eyes can speak.我们的眼睛能准确地传达一些信息,所以人们常说,眼睛会说话。Do you have such kind of experience? In...

    2018-11-21 英语短文
  • 英汉英语美文:快乐是选择 Happiness is a Choice

    we want it. we strive for it. we envy others who have it. we can see it just beyond the horizon …as soon as we get richer, thinn...

    2018-10-27 英语短文
  • 旧约 -- 列王记上(1 Kings) -- 第19章

      19:1 亚哈将以利亚一切所行的和他用刀杀众先知的事都告诉耶洗别。  And Ahab told Jezebel all that Elijah had done, and withal how he had slain all the prophets with the sword.  19:2 耶洗别就差遣...

    2018-12-11 英语短文
  • 旧约 -- 士师记(Judges) -- 第2章

      2:1 耶和华的使者从吉甲上到波金,对以色列人说,我使你们从埃及上来,领你们到我向你们列祖起誓应许之地。我又说,我永不废弃与你们所立的约。  And an angel of the LORD came up from Gilgal to Bochim, and said...

    2018-12-11 英语短文
  • 英语美文:上帝的安排 孩子的守护天使

    once upon a time there was a child ready to be born. so one day he asked god, "they tell me you are sending me to earth tomorrow but how am i going to live there being so small and helple...

    2018-10-30 英语短文
你可能感兴趣