Children who spend more than seven hours on a smartphone or play video games, their brain circulation may be thin in the early years. It has been said in a new study. The research was done in financial collaboration with the US National Institutes of Health (NIH). The news agency Xinhua has planned over 11 thousand child teenagers for a decade so that these devices will be adversely affected on the child’s brain. But the first results of the study have already been found. Researchers reported it to scan the brains of 4,500 people. It has been found that children who spend more than seven hours on smartphones, tablets, and video games have thin brain content. But it is not possible to say anything about this screen time effect until the study is completed.