Blue light is constantly aroud you. It can come off of computers, cell phones, televisions, and so much more. Blue light is light that is emitted from natural and artificial places. Blue light isn’t the only kind of light on earth. Light can come off as yellow, orange, green, and violet. Yes, screens give off a lot of blue light, but the sun is the main way that we encounter blue light. Blue light can actually be helpful sometimes. For some people it can be helpful to highten your mood. It can also help to make you more alert and can assist with your memmory and cognitive functions. Even though there are so many positives to blue light, there is still some negatives. The overuse of blue light can change a ersons cercadium rhythm (sleep schedule). Many scientists have done tests to see if being on screens for too long or being too close to screens can cause long term eye damage. So far there is still no concrete evidence of this though. Blue light still not be as harmful as some people think but it still can cause some short term eye issues. Digital Eye Strain (DES) can cause sore or dry eyes, headaches, and blurry vision. To prevent DES from occuring try to take breaks for at least 20 minutes; this way you will give your eyes a break from the light. You can also make sure that you dont get to close to the screen: stay an armlength distance away from the screen. Lastly, you can buy some blu light glasses. These glasses help to deflect blue light and help you to be able to go to bed on time.
How many hours a day are you on technology?
Why do you think schools have computers even though tey give off a lot of blue light?
Why do you think scientist haven’t looked more into how blue light affects us?
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On average I’m probably on technology about 4 or 5 hours a day. On weekends its probably less because I don’t have school so I don’t use my school comuter.
I think schools have computers even though they give off blue light because it’s convenient. Teachers and students can stay organized easily because everything is online.
I think scientist haven’t looked more into it because the sun is the main way we encounter blue light and that is something we obviously can’t avoid. Maybe they don’t see it as a big threat right now, or even if they did fix it they know we would still encounter blue light through the sun.