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why do we have to sleep at night

After a full night of sleep, you wake up ready for a new day of school, fun activities and family time. You use a lot of energy to go to school, play outside at recess, do your homework, go to piano lessons and eat dinner with your family and by the end of the day your body becomes driven to sleep. You are like a car, with your gas tank full in the morning, and empty by the end of the day. Just like your parents have to go to the gas station, you fill up your own gas tank while you sleep. A full tank gives you enough energy to stay busy and do your best the next day.
We tend to think of sleep as a time when the mind and body shut down. But this is not the case; sleep is an active period in which a lot of important processing, restoration, and strengthening occurs.

Exactly how this happens and why our bodies are programmed for such a long period of slumber is still somewhat of a mystery. But scientists do understand some of sleep's critical functions, and the reasons we need it for optimal health and wellbeing. One of the vital roles of sleep is to help us solidify and consolidate memories. As we go about our day, our brains take in an incredible amount of information. Rather than being directly logged and recorded, however, these facts and experiences first need to be processed and stored; and many of these steps happen while we sleep. Overnight, bits and pieces of information are transferred from more tentative, short-term memory to stronger, long-term memoryвa process called "consolidation. " Researchers have also shown that after people sleep, they tend to retain information and perform better on memory tasks.

Our bodies all require long periods of sleep in order to restore and rejuvenate, to grow muscle, repair tissue, and synthesize hormones. Video production in partnership with Healthy sleep is critical for everyone, since we all need to retain information and learn skills to thrive in life. But this is likely part of the reason childrenвwho acquire language, social, and motor skills at a breathtaking pace throughout their developmentвneed more sleep than adults.

While adults need 7-9 hours of sleep per night, one-year-olds need roughly 11 to 14 hours, school age children between 9 and 11, and teenagers between 8 and 10. During these critical periods of growth and learning, younger people need a heavy dose of slumber for optimal development and alertness. Unfortunately, a person can't just accumulate sleep deprivation and then log many hours of sleep to make up for it (although paying back "sleep debt" is always a good idea if you're sleep deprived). The best sleep habits are consistent, healthy routines that allow all of us, regardless of our age, to meet our sleep needs every night, and keep on top of life's challenges every day.

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