Persuasive letter

Persuasive Letter

                                                                                      Doyon Kim

Korea 

Dear. Parents who have kids

     I'm writing this letter because I believe that parents should not let their kids to play with smartphones. Many experts like Dr. Justin Coulson and Mr. Park ( smartphone expert), for example agree with me. I will explain reasons for this and give facts to support my opinion. 

     The first reason is because it isn't good for kids' brain's development. There are statistics to show this is true.  According to the reserach done by Prof. Lee, kids using smartphone consistently had late brain development.
(http://article.joins.com/news/article/article.asp?total_id=10351161&cloc=olink|article|default)

  

     The second reason is because it causes problem to kids' eyesight and eyes. There are facts to show this is true. It has been discovered that kids who use smartphone consistently had 
decreased visual acuity and dry eye.
(http://www.hankyung.com/news/app/newsview.php?aid=201212140171i)

     The final reason is because it causes many troubles like finger arthritis, forward head posture and carpal tunnel syndrome after they grow up. There is data to show this is true. According to research, using smartphone causes finger arthritis, forward head posture and carpal tunnel syndrome.

finger arthritis(http://www.dt.co.kr/contents.html?article_no=2012120402019957788002) 

forward head posture (http://www.anewsa.com/detail.php?number=523467&thread=09r02)

carpal tunnel syndrome (http://www.anewsa.com/detail.php?number=523467&thread=09r02)

     As you can see, letting kids use smartphones are not good for kids. Based on my arguments, I hope you will consider my point of view parents shouldn't let their kids use smartphones, because it causes many problems to their kids.

Sincerely,

Doyon Kim.