Sleeping With The Lights On Can Damage Your Health
Want a good night’s sleep? Keep the lights off, but not just some of them, ALL of them. A recent sleep study conducted by Northwestern University found that having the…

Want a good night's sleep? Keep the lights off, but not just some of them, ALL of them. A recent sleep study conducted by Northwestern University found that having the lights on affects our sleeping more than we thought.
NPR reports the study involved 20 people. Each had one night's sleep in full darkness. And another in what was labeled a "moderately lit" room. To give you more of an image, researcher Dr. Phyllis Zee says "moderately lit" means having "enough light that you could maybe see your way around, but it's not enough light to really read comfortably."
Sleeping with a 'moderate' amount of light in the room affected heart rate and metabolism in each subject. Even with subjects who felt they got a good night's sleep. The fact that these physiological changes could occur, even when we sleep well, was a notably big finding.
The researchers theorize that even a small amount of light can put humans or animals into a 'pro-inflammatory state' during sleep. NPR says being consistently in this state while sleeping could have lasting negative health effects.
Would you rate your sleep habits as good or bad? Do you try to keep a consistent bedtime?
Source: NPR
I said it all throughout high school (and even did my senior exit project on the topic), that the schedules teenagers have do not allow them to get enough sleep. Many CMS high schools start at 7:15 am meaning students are waking up at 6 or even earlier. Factor that with homework, practices, clubs after school and at night. It's no surprise that many teenagers are sleep-deprived. But does where you live to make you more or less likely to get enough sleep? There are definitely trends and North Carolina doesn't stack up too well. Continue reading for the full list to see where NC ranks.
Being a teenager is never easy, but even in the years since I did that project, it's gotten harder. It can seem almost impossible to enjoy happy and healthy adolescence. And due to many of these changes, the U.S. Surgeon General released a new advisory on youth mental health in late 2021. This draws attention to rising rates of depressive symptoms, suicidal ideation, and other mental health issues among young Americans.
These trends in youth mental health can be attributed in part to detrimental shifts in young people’s lifestyles over time, including increased academic stress, growing use of digital media, and worsening health habits. And one of the major potential culprits in the latter category is sleep.
According to the CDC, teenagers should sleep between 8–10 hours per 24 hour period. This level of sleep is associated with a number of better physical and mental health outcomes, including a lower risk of obesity and fewer problems with attention and behavior. Despite this, less than a quarter of teens report sleeping at least eight hours per day—a number that has fallen significantly over the last decade.


The data used in this analysis is from the CDC’s Youth Risk Behavior Surveillance System (YRBSS), which surveys a representative sample of grade 9–12 students in U.S. schools. To determine the states where teens don’t sleep, researchers at ChamberOfCommerce.org calculated the percentage of high school students who reported getting eight hours of sleep on an average school night. In the event of a tie, the state with the larger share of students who spent at least three hours per day on a phone or computer (including video games) for non-school use was ranked higher.
Here are the states where the most teenagers are sleep deprived
15. Oklahoma
Teens who get 8 hours of sleep: 21.1%
Teens who spend >3hrs on phone/computer: 48.0%
Teens who don't exercise: 14.8%
Teens who watch >3hrs of TV: 22.3%
14. Maryland
Teens who get 8 hours of sleep: 21.0%
Teens who spend >3hrs on phone/computer: 42.4%
Teens who don't exercise: 21.8%
Teens who watch >3hrs of TV: 19.7%
13. Connecticut
Teens who get 8 hours of sleep: 21.0%
Teens who spend >3hrs on phone/computer: 47.9%
Teens who don't exercise: 17.7%
Teens who watch >3hrs of TV: 22.7%
12. New York
Teens who get 8 hours of sleep: 20.4%
Teens who spend >3hrs on phone/computer: 40.1%
Teens who don't exercise: 20.0%
Teens who watch >3hrs of TV: 17.8%
11. Florida
Teens who get 8 hours of sleep: 20.2%
Teens who spend >3hrs on phone/computer: 47.7%
Teens who don't exercise: 21.8%
Teens who watch >3hrs of TV: 22.0%
10. Illinois
Teens who get 8 hours of sleep: 20.1%
Teens who spend >3hrs on phone/computer: 46.0%
Teens who don't exercise: 12.3%
Teens who watch >3hrs of TV: 17.8%
9. South Carolina
Teens who get 8 hours of sleep: 19.8%
Teens who spend >3hrs on phone/computer: 40.1%
Teens who don't exercise: 20.7%
Teens who watch >3hrs of TV: 21.5%
8. Pennsylvania
Teens who get 8 hours of sleep: 19.6%
Teens who spend >3hrs on phone/computer: 49.4%
Teens who don't exercise: 12.6%
Teens who watch >3hrs of TV: 19.4%
7. Louisiana
Teens who get 8 hours of sleep: 19.4%
Teens who spend >3hrs on phone/computer: 40.4%
Teens who don't exercise: 25.5%
Teens who watch >3hrs of TV: 24.6%
6. Kentucky
Teens who get 8 hours of sleep: 19.4%
Teens who spend >3hrs on phone/computer: 47.5%
Teens who don't exercise: 19.1%
Teens who watch >3hrs of TV: 21.3%
5. West Virginia
Teens who get 8 hours of sleep: 19.2%
Teens who spend >3hrs on phone/computer: 41.7%
Teens who don't exercise: 14.7%
Teens who watch >3hrs of TV: 20.8%
4. Tennessee
Teens who get 8 hours of sleep: 18.5%
Teens who spend >3hrs on phone/computer: 44.5%
Teens who don't exercise: 19.1%
Teens who watch >3hrs of TV: 23.5%
3. Michigan
Teens who get 8 hours of sleep: 17.6%
Teens who spend >3hrs on phone/computer: 17.6%
Teens who don't exercise: 16.5%
Teens who watch >3hrs of TV: 18.5%
2. North Carolina
Teens who get 8 hours of sleep: 17.4%
Teens who spend >3hrs on phone/computer: 46.4%
Teens who don't exercise: 19.9%
Teens who watch >3hrs of TV: 20.1%
1. New Jersey
Teens who get 8 hours of sleep: 15.7%
Teens who spend >3hrs on phone/computer: 46.5%
Teens who don't exercise: 14.8%
Teens who watch >3hrs of TV: 17.6%