<Smartphones>

  These days, most people use smartphone. People use it while walking on the street. On the subway, during the class, before going to bed. This small invention is taking a great part in our daily lives. With smartphones, we can do facebook, kakao talk, internet surfing, camera, webtoon, memo, alarm, dictionary, calculator, diary, calendar, subwayline map, stopwatch, game, music, map, call, messages, etc. We can do almost everything with this device. Using facebook and kakao talk, we can contact others that are staying overseas, or make foreign friends. Plus, get some useful information with Internet, for example, if someone’s sick so he has to go to hospital and don’t know where, he can search in Internet. We can find many positive things in smartphone. But, just like anything else, it has negative effects, too.
  First, there’s a possibility of accident. Especially, young people lower their heads and only stare at their phone while walking on the street. So their visual field is only ground. So they can’t see other people or bicycle coming toward and the accident happens. This kind of accident is really common these days. 
  Second, conversation disconnection happens. In house, few years ago, most family had enough conversation during having dinner. But now, it is difficult to gather in one time at one place. Also, when meeting friends, all of them stare at their smartphones so there’s not any conversation. This is really ridiculous. 
   Third, smarphones emit electromagnetic waves. When kids are exposed to electromagnetic waves. Bone marrow or braincell can be damaged and this damage can last forever and even affect genetically. Also, when women are exposed to electromagnetic waves for long period, a number of eggs can be decreased. It is so much harm to our body. Lastly, smartphone addiction happens. These are bad aspects of samrtphone. Although It is inseparable from us, we need to at least try to use it less. 
------------------------------------------------------------------------------------------------------------------------------------------Edited

  These days, most people use smartphones. People use them while walking on the street, on the subway, during the class, before going to bed, and so on. This small invention  plays a key role in our daily lives. Smartphones have a wide variety of apps and features such as Facebook, Kakao Talk, internet surfing, camera, webtoons, memo, alarm, dictionary, calculator, diary, calendar, subway line map, stopwatch, game, music, map, call, messages, etc. We can do almost everything with this device. Using Facebook and Kakao Talk, we can contact others that are staying overseas, or make foreign friends. Plus, we can get some useful information  via the Internet, for example, if someone’s sick  and  has to go to hospital but doesn’t know where it is, he can search the Internet. Smartphones have many positive aspects. But, just like anything else, they have negative effects, too.
  First, there’s a possibility of accident. Especially, Yyoung people, especially, lower their heads and only stare at their phone while walking on the street, so they only see the ground.  So They can’t see other people or bicycles coming toward them and an the accident happens. This kind of accident is really common these days.
  Second, conversation disconnect happens. At home, a few years ago, most families had enough conversation while having dinner. But now, it is difficult to gather at the same time in one place. Also, when meeting friends, all of them stare at their smartphones, so there isn’t any conversation. This is really ridiculous.
  Third, smartphones emit electromagnetic waves. When kids are exposed to electromagnetic waves bone marrow or brain cells can be damaged this damage can  have lasting, and even genetically, effects. Also, when women are exposed to electromagnetic waves for  prolonged periods of time, a number of eggs can be decreased. It is very harmful to our body.
  Lastly, smartphone addiction can occur. These are the bad aspects of smartphones. Although  we are inseparable from them, we need to at least try to use them less.