The Effect of screens
CYSF · 2025
Overview
Our project is about the Effect of screens and what it does to the human brain. In this research project we will explain what exactly blue light is and how it affects us and how screens are changing this generation.
Problem
Kids and adults are having excessive amounts of screen time, and in some cases it is effcting their daily life.
Method
First we found out how screens emit blue light, then figured out what it does to the brain. we did different sections for adults and kids.
Research
The Effect of Screens
In 2025 screen time for both kids and adults has been increasing. The main problem being phones. For the most part, kids don’t have phones, but that has been changing over the course of a decade. Now, 42 percent of kids have a phone by age 10. By age 12, it's 71 percent. By 14, it's 91 percent. Average screen time for kids ages 2 to 4 – 2 to 2.5 hours a day. Average screen time for kids ages 5 to 8 – Over 3 hours a day. Average screen time for tweens ages 8 to 12 – Almost 5 hours a day. Average screen time for teens – Almost 7.5 hours a day. Adults spend an average of 59 hours and 56 minutes on screens a week. For both adults and kids, we should try to limit screens to about an hour or two. By cutting off screens we would help kids (and adults) maintain healthy eyes that can last people a lifetime.
Citations
https://valleywisehealth.org/blog/negative-effect-of-screen-time-adults-children/
https://www.mayoclinichealthsystem.org/hometown-health/speaking-of-health/children-and-screen-time
https://hms.harvard.edu/news/screen-time-brain
https://enhancedlifestyles.com.au/2023/09/15/the-downsides-of-too-much-screen-time/
Awards (1)
- HONOURABLE MENTION
Competition history
- CYSF 2025
Resources
- https://valleywisehealth.org/blog/negative-effect-of-screen-time-adults-children/
- https://www.mayoclinichealthsystem.org/hometown-health/speaking-of-health/children-and-screen-time
- https://hms.harvard.edu/news/screen-time-brain
- https://enhancedlifestyles.com.au/2023/09/15/the-downsides-of-too-much-screen-time/
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Source: Calgary Youth Science Fair