HOMEWORK

Hello Jin Young. Thank you for this informative essay. Now we have a better understanding why sleep is really important.

- T. Beth

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People get a sleep in 24~28 years averagely during whole life.

>>>> People sleep for about 24-28 years average in their whole life.  

Melatonin is hormone in all people, which is sleeping hormone, and if getting proper sunshine, it is so activated that people who have more activities in daytime than night have a more sleeping time averagely.

>>>> Melatonin, a hormone present in humans, is significant for sleeping. If you get proper sunshine, the hormone is activated so people who have more activities in daytime than night get more sleep averagely.   

Scientists say sleeping effects are tremendous.

>>>> CORRECT.  

But, they can\'t demonstrate exact sleeping effects.

>>>> OR: But there is no concrete evidence to prove that.  

There is a research result that if shortage of sleeping is kept over 3 weeks, it is possible to die by extreme stress and shortage of rest on body\'s organ.

>>>>  A research result suggests that if shortage of sleeping is kept over 3 weeks, it is possible to die from extreme stress and shortage of rest on body\'s organs.  

Among importance of sleeping, it is for immunity to be strong.

>>>> CORRECT.  

If people can\'t get enough sleep, brain can\'t take a rest, therefore immune system were damaged.

>>>>  If people can\'t get enough sleep, the brain can\'t take a rest, therefore immune system is damaged.

Also, because growth hormones were secreted during sleep, it is very important for children.

>>>>  Also, because growth hormones are secreted during sleep, it is very important for children.