Nowadays, with the popularization of electronic technology, many 
children
 have much more opportunities to use smartphones, and some of them will spend a lot of time every day on them Use synonyms
due to
 the compelling content Linking Words
such
 as games or social media making them addicted. I permanently insist Linking Words
this
 is a negative development because it is detrimental to Linking Words
children
's health and poses a negative impact on their cognitive development. I will explain my view in the following essay.
Use synonyms
Firstly
, playing smartphone for a long time is adverse to those Linking Words
children
 in their period of growth. Use synonyms
For instance
, Linking Words
children
 who spend hours on the screen will strain their eyes seriously which can lead to irreversible damage to their vision. Use synonyms
Moreover
, scrolling through  the screen can make Linking Words
children
 lose interest in participating in outdoor activities which will deprive them of some opportunities to exercise. Use synonyms
Therefore
, Linking Words
this
 makes it clear that playing mobile in excess is harmful to Linking Words
children
's wellness.
Use synonyms
Secondly
, the dazzling contents displayed on the screen are not conducive to cultivating kids' cognition. Linking Words
For example
, artificial intelligence technology can replace one face in the video with another, those videos will confuse kids and make them believe it's true. Linking Words
Although
 some cell phones provide parents with a child-lock function to restrict the content that Linking Words
children
 can access,  the kids are always able to find a way to detour it. Use synonyms
Consequently
, Linking Words
children
 who spend hours every day are more likely to access inappropriate content which brings disadvantages to their cognitive development.
In conclusion, playing excessive time on  smartphones will bring an adverse impact on Use synonyms
children
's health and mental growth. Use synonyms
Thus
, Linking Words
this
 phenomenon among  Linking Words
children
 can not be supported.Use synonyms