Question

read the following: \almost no one can resist looking at an electronic screen before bedtime. a survey by the national sleep foundation says that 95% of americans admit to watching television, playing video games, or checking their email or texts in the hour before sleep. this despite rumors that the practice will ruin your sleep or hurt your eyes. the good news is that ophthalmologists say that the blue light coming from a smartphone or computer screen does not cause eye damage or blindness. staring too long at a bright screen in a dark room can cause dry eye or muscle strain, but those issues are temporary. short of staring into the sun, they say, you cannot hurt your eyes by using them. special glasses or screen filters are not needed. on the other hand, research shows that looking at electronic screens does make sleeping difficult. artificial light increases alertness and makes it harder to fall asleep. blue light can also keep the brain from releasing hormones that aid in reaching the deepest and most restful stages of sleep. these effects are especially powerful when the light - emitting devices are held close to the face. sleep experts suggest putting away your phone or tablet for an hour or two before bedtime. if you cant, at least use an app that dims and warms the light coming from the display.\ choose the outline that best shows the main idea and major details of this reading. i. electronic devices both good and bad a. eyes unhurt b. brain damaged i. national sleep foundation study results are mixed a. most americans use electronics at night i. doctors disagree ii. eye doctors encourage electronic use iii. brain doctors call for ban on electronics i. dangers of electronic screens a. eye problems i. prolonged use causes temporary irritation ii. blue light causes no permanent damage b. poor sleep i. bright light makes it harder to fall asleep

Explanation:

The passage first mentions that many Americans use electronic devices before sleep despite rumors of negative effects. It then states that blue - light from screens doesn't cause permanent eye damage, but staring at bright screens can cause temporary issues. Finally, it highlights that looking at electronic screens can make sleeping difficult. The outline in option C best captures these main ideas and details about the dangers of electronic screens including eye problems and sleep issues.

Answer:

C. Dangers of electronic screens
A. Eye problems
i. prolonged use causes temporary irritation
ii. blue light causes no permanent damage
B. Poor sleep
i. bright light makes it harder to fall asleep