ellen sims is an 18 year-old college student.she has an important history exam tomorrow morning ellen is going to study all night. she is not going to seep at all many college students like ellen do this often they think that they think that that in the morning they will remember everything that they studied the night before. ellen thinks that this is a good way to study but many doctors disagree they say that sleep is very important for memory and brain developmemt.
Scientists at Harvard Medical school in the U.S.studied sleep and memory.They studied 14 people. First, they asked the people to look at a picture and remember it .At night ,they put the people in two groups of 12.Group 1 went to sleep.Group 2 did not.A few days later, the scientists showed some picture to both groups.they asks the people to fine the picture the saw before.The people in group 1 did well. But the people in Group 2 did not well .It wasn't easy for them to remember the picture .What happened? Scientists say that sleep help our memory.After we learn something new,sleep help us remember it. And when we don't sleep,we can forget new things.Scientists say that many teenagers,like Ellen,sleep to little.They go to school an they work,too. they also spend time with their friends.They are always busy and they think that sleep doesn't matter.But Scientists say the brains of teenagers are still developing,and sleep is a very important part of the development.When teens sleep less than six hours,they can't think clearly.That is not very helpful for a student who is taking an exam.
ellen sims is an 18 year-old college student.she has an important history exam tomorrow morning ellen is going to study all night. she is not going to seep at all many college students like ellen do this often they think that they think that that in the morning they will remember everything that they studied the night before. ellen thinks that this is a good way to study but many doctors disagree they say that sleep is very important for memory and brain developmemt.Scientists at Harvard Medical school in the U.S.studied sleep and memory.They studied 14 people. First, they asked the people to look at a picture and remember it .At night ,they put the people in two groups of 12.Group 1 went to sleep.Group 2 did not.A few days later, the scientists showed some picture to both groups.they asks the people to fine the picture the saw before.The people in group 1 did well. But the people in Group 2 did not well .It wasn't easy for them to remember the picture .What happened? Scientists say that sleep help our memory.After we learn something new,sleep help us remember it. And when we don't sleep,we can forget new things.Scientists say that many teenagers,like Ellen,sleep to little.They go to school an they work,too. they also spend time with their friends.They are always busy and they think that sleep doesn't matter.But Scientists say the brains of teenagers are still developing,and sleep is a very important part of the development.When teens sleep less than six hours,they can't think clearly.That is not very helpful for a student who is taking an exam.
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