Nice to meet you!

 Hello!

I am Kayoko Sakaguchi.

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Could humans live in underwater city?

     Hello, everyone! Today, I'll introduce a podcast which I watched. The title is 'Could humans live in underwater city?'     In this podcast, whether we human try to live in the sea and what problems are of living in underwater are explained. First of all, there is a project to live under the sea, and Japanese team is leading it. One of the member of the project team said that it is our purpose to solve environmental problems like lack of natural resources. At seabed, there are a lot of resources, for example, oil and shale gas. He insist that if we can use the resources, we will not have to suffer from shortage of it on the ground.      However, there is mainly one big physiological problems when we live in underwater city. First problem is that we have to worry about the bends, a disease caused by the differences of atmospheric pressure between on the ground and under the sea. Because of the bends, even ex-military person could live in underw...
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History of Otoshidama

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     Hello, everyone! Did you enjoy the last winter vacation? I do hope that you had a good time during the New Year. Today, I will write about the origin of Otoshidama  (お年玉).    　Why Japanese adults give their money to children on the New Year's Day? It is said that this custom had been related to "Year God(Toshigami-sama,歳神さま in Japanese)," who had been worshiped in each family during the New Years holidays. People worshiped Toshigami-sama because they believed that the God brought abundant grains to people. Also, people thought that they could be health and make a lot of grains during the year if they gave rice cakes, which were made for the God, to their family or servants.      Japanese people thought that the rice cakes were sacred things. Therefore, it is said that people called the rice cakes "rice cakes like gems( 玉( Tama ) のような餅)." Also, some people called "the soul of Year God (歳( Toshi )神様の魂( Tama shii))," so the rice cakes becam...
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How to Sleep Well

     Hello, everyone! Today, I'll introduce about quality of sleep. Do you sleep well these days? I think that you sometimes cannot even though you know it is important to sleep because of some problems. However, you can get the same effects any time as 7 hour's sleep if you improve your quality of sleep. On the contrary, if you are sleep despite of your long time sleep, you maybe cannot recover from physical and mental tiredness.     Thus, I will explain how to improve our quality of sleep in following sentences. There are 6 significant points.     First, we have to know our own good sleeping time. Have you ever heard "REM Sleep" and "Non-REM Sleep"? If we can wake up during REM Sleep, we can get up comfortably. Also, REM Sleep appears every 90 minutes, so it is good to decide our sleeping time to 4.5 hours, 6 hours or 7.5 hours.      Second, we should not eat anything from 3 hours before we sleep. This is because if we take food, the f...
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