A big number of studies shows that when a person plays video games, it can lead to structural changes in the brain, increase the size of some regions, and activate the areas responsible for attention and visual skills.
"shows" --> "show"
15
In the same way, video games are a good tool to learn a new language, because many of them are not in the players’ native language.
No comma needed before "because"
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These pilot assistance system so as to solve the problem of traffic accidents cause by young people.
Where is the verb?
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Video games are the pioneers of technology in entertainment, they are of high quality and very popular with children and adolescents
Need a conjunction
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In addition, many mothers use these to entertainment their children at home.
"Entertain" is the verb
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Additionally, he does not do physical activity and can gains weight due to sedentary lifestyle, which may affect his health.
Can + base verb
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Especially when they grownup they will not have time to cook so that they are vulnerable for fast and junk foods that leads them gaining weight that causes them to health problems.
Great sentence, but pay attention to the punctuation
15
Next, aggressive games are especially harmful. It has a very negative effect on them.
"They" instead of "it"
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When I was born, many video games were already crazy about kids.
When I was born, many kids were already crazy about video games.