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A Solution for Better Sleep
A Reading Comprehension Passage by Common Core Texts

What is the last thing you see before falling asleep at night? A page of a book? The fuzzy nose of a teddy bear? Or is it the screen on an electronic device? New research suggests that viewing a screen just before falling asleep can be harmful. That is because electronic device screens emit blue light. This blue light interrupts our sleep. It can cause us to wake up more at night. It cuts down on the rest we get from sleep. In short, blue light leaves us exhausted.

When we are outdoors, natural blue light from the sun tells our body that it is daytime. When the nerves in our eyes receive blue light, they send special signals to the brain. These signals tell the brain to stay active and awake. As night falls, our body naturally adjusts to the darkness and begins preparing itself for sleep. But these days, the average home is filled with electronic screens. The screens on televisions, computers, gaming devices, and smartphones all emit blue light, and this blue light keeps us awake.

Fortunately, word is spreading about the harm that blue light can cause. Many devices now allow the user to filter out blue light. Using the “blue light filter” option on your electronic device can help you to sleep well. But the best solution is to avoid electronics entirely when it is near bedtime. Of course, it may be hard to put down that screen. But if you do, you’ll have a better chance of waking up rested and refreshed.


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