The Importance of Sleep for the Body, Humans need a break to sleep. You know that you feel refreshed after sleeping at night. But why so?
Basically, the amount you need decreases with age. A newborn can sleep 20 hours a day. At the age of 4 years, the average is 12 hours a day. At age 10, the average drops to 10 hours a day. And the adults seem to need 7 to 9 hours of sleep a night. This is the average, and also subjective. You, for instance, may know how many average sleep you need at night to feel the best.
Did something important happen during sleep? Growth hormone in children released during sleep, and chemicals essential for the immune system released during sleep. You can become more susceptible to disease if you do not get enough sleep, and child growth could be hampered by lack of sleep.
Nobody really knows why we sleep, but there are all sorts of theories, including these:
1. Sleep gives the body a chance to repair muscles and other tissues, replace dead cells, and so on.
2. Sleep gives the brain a chance to organize and archive memory. Dreams are considered some people become part of the process.
3. Sleeping reduce our energy consumption. Because we can not do anything in dark conditions, we can also "turn off" and save energy.
4. Sleep may be a way of filling the brain.
A good way to understand why your sleep is to see what happens when we do not get enough:
* As you know if you ever stayed up late, spend one night with no sleep is not fatal. A person generally will be angry the next day and will become easily tired or will be really annoyed because adrenaline.
* If someone spent two nights to sleep it gets worse. The concentration of the more difficult and much more attention span. Errors is increasing.
* After three days, someone will begin to hallucinate and not be able to think clearly. By continuing to awake a person can lose the understanding of reality.
Someone who only a few hours of sleep per night can experience many similar problems from time to time. It only takes three days of sleep deprivation, can cause a person to hallucinate. Obviously, if you pass it up to long periods of time, symptoms will worsen and in time, most likely fatal. Rats forced to stay awake continuously will eventually die, proving sleep is very important. Unless you're forced to stay awake, you'll probably fall asleep before anything drastic like death get you.
Basically, the amount you need decreases with age. A newborn can sleep 20 hours a day. At the age of 4 years, the average is 12 hours a day. At age 10, the average drops to 10 hours a day. And the adults seem to need 7 to 9 hours of sleep a night. This is the average, and also subjective. You, for instance, may know how many average sleep you need at night to feel the best.
Did something important happen during sleep? Growth hormone in children released during sleep, and chemicals essential for the immune system released during sleep. You can become more susceptible to disease if you do not get enough sleep, and child growth could be hampered by lack of sleep.
Nobody really knows why we sleep, but there are all sorts of theories, including these:
1. Sleep gives the body a chance to repair muscles and other tissues, replace dead cells, and so on.
2. Sleep gives the brain a chance to organize and archive memory. Dreams are considered some people become part of the process.
3. Sleeping reduce our energy consumption. Because we can not do anything in dark conditions, we can also "turn off" and save energy.
4. Sleep may be a way of filling the brain.
A good way to understand why your sleep is to see what happens when we do not get enough:
* As you know if you ever stayed up late, spend one night with no sleep is not fatal. A person generally will be angry the next day and will become easily tired or will be really annoyed because adrenaline.
* If someone spent two nights to sleep it gets worse. The concentration of the more difficult and much more attention span. Errors is increasing.
* After three days, someone will begin to hallucinate and not be able to think clearly. By continuing to awake a person can lose the understanding of reality.
Someone who only a few hours of sleep per night can experience many similar problems from time to time. It only takes three days of sleep deprivation, can cause a person to hallucinate. Obviously, if you pass it up to long periods of time, symptoms will worsen and in time, most likely fatal. Rats forced to stay awake continuously will eventually die, proving sleep is very important. Unless you're forced to stay awake, you'll probably fall asleep before anything drastic like death get you.
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