As computer monitors, they typically spend less time

As children spend more time in front of computer
monitors, they typically spend less time in physical activities. According to
CNN Health(2017), children up to age 8 spend an average of 2 hours and 19
minutes every day on screen media and for 8- to 12-year-olds, the average time
spent using screen media every day was 4 hours and 36 minutes, so children who
spend a great amount of time on the Internet also engage more in other
sedentary behaviors. The sedentary lifestyle associated with computer usage can
be a prime risk factor for obesity, according to clinical psychologist
Kaleyvani Geeseeny Sawnmy, author of “The impact of Internt use on
Children/Adolescent”. In a study published in the PMC, it was discovered that those who spent the most time on a
computer were 1.5 times more likely to be overweight and 2.5 more likely to be
obese than those who did not use a computer at all. Even those children
computer users who had high levels of physical activity were 1.86 times more
likely to be overweight or obese than people who spent no time on computers.
The Internet not only contributes to physical inactivity but commercials
and other programs also encourage us to eat more. It takes away from the time
children spend on physical activities and also leads to increased energy intake
through snacking and eating meals in front of the computer. Those habits of
“sit time” and “snacks”, and also product advertisements online, influence
children to make unhealthy food choices. Furthermore, computer use is linked to
both repetitive motion injuries like carpal tunnel and eye strain. According to
a survey which was mentioned in “Internet Use and its Impact on Individual
Physical Health”, Internet users commonly complaint about dry eyes(73.7%),
declining eyesight(64.1%), cervical pain(48.1%), and other things. The Internet,
on the other hand, affects on the student’s academic performance. For instant, online
games or Social media sites totally distract children from studying. Instead of
listening carefully what teachers say in class, youngsters often think or chat
with their friends about how they can improve their ability in the games or
where are they going to hang out in their cyber world and so on. Moreover,
after school, they just go straight to the computers, ignoring their homework
and lessons to review, letting their grades lower more and more. Furthermore,
teenagers may use the Internet to cheat during the exams. According to the data
from a survey about using cellphone to cheating in the exams, 45%  of students are believed to use the cellphone
to access the Internet and 20% admitted that they’d already done this.