# data[].attributes.headline
1-Why do you have to turn off the lights to go to sleep?

# data[].attributes.subject
1-Why do you have to turn off the lights to go to sleep?

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Darkness is required for sleeping. The lack of light tells the body that it's time to sleep. The body's internal "sleep clock," the biological mechanism that regulates sleep-wake cycles, is disrupted by light exposure at specific times, affecting both the quantity and quality of sleep.

http://sleep.mysplus.com/library/category2/article1.html#:~:text=Darkness%20is%20essential%20to%20sleep,quantity%20and%20quality%20of%20sleep.

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It is done by about 20% of people, including babies. This condition is known as "nocturnal lagophthalmos" by doctors. If you have it, you can usually close your eyes partially, but not completely, while sleeping.

https://www.webmd.com/sleep-disorders/sleep-eyes-open#:~:text=You%20might%20be%20surprised%20to,you%20sleep%2C%20but%20not%20completely.

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Sleep allows your body and mind to recharge, allowing you to wake up feeling refreshed and alert. Healthy sleep also aids in the body's health and disease prevention. The brain cannot function properly if it does not get enough sleep.

https://www.sleepfoundation.org/how-sleep-works/why-do-we-need-sleep#:~:text=Sleep%20is%20an%20essential%20function,the%20brain%20cannot%20function%20properly.

# data[].attributes.attachment_link.title
How does light affect sleep? (S5) | The Power of Good Health