What Happens When We Sleep?

Quiet sleep or non-REM

During the sleep cycle we will have two kinds of state of quiet sleep is the sleep state and active sleepstate. Quiet sleep is often referred to as NREM sleep or non-REM (Rapid Eye Movement or No. No Fast Eye Movement).

When quiet sleep or NREM or non-REM sleep, a person's body will experience a quiet activity. Pulse, respiration and blood pressure of the body will move more calm and orderly. This is a process in which the body restores the body. Muscles, glands of the body and improved body composition. Substances that are not useful will be removed from the body. At the time of quiet sleep also occurred merging the proteins to be used during active sleep.

In the state of quiet sleep or NREM or non-REM sleep, a person will experience 4 phases. Here are the stages that occur when you start to fall asleep.

• Sleep Light

  The first time someone started to fall asleep, you enter the first stage where you have mild sleep or sleeping shallows, where the muscles will relax your body and brain waves will move irregularly. At this stage usually begins when you are drowsy and fell asleep. The first phase lasts for 30 seconds to 7 minutes of your sleep.

• Actually Sleep

  Next, you will enter the second stage the actual sleep, where brain waves swell, fragments of thoughts and images might have emerged and are moving in our minds but we do not realize it, even you are not aware of the circumstances around you. The second phase lasts for 20 percent of all your bedtime.

• More Sleep Asleep

  The third stage you sleep more soundly. At this stage, your body is getting hard to be awakened because it was asleep.

• Sleep Terpulas

  The fourth stage is the stage of sleep most soundly. At this stage, the brain produces large waves, most of the blood flow to the muscles, there was recovery and repair body functions. Growth hormone is produced and the process occurs at this stage of growth takes place. The third and fourth phase lasts for 50 percent of the time our sleep. 
  
  If when asleep, we can not enter the third stage and fourth, then most likely when we'll wake up feeling tired even depression.

Finish entering the fourth stage, you will experience the first stage again, entering the second stage and so on. This cycle will be repeated several times. In general, repetition of this cycle lasted for 3 to 5 times. The duration of a time cycle takes about 90 to 110 minutes.

Active or REM sleep

Every quiet or NREM sleep cycle will end with active sleep or REM (Rapid Eye Movement Rapid Eye). The opposite of quiet sleep, pulse, respiration, blood pressure and other activities take place with more active, rapid and irregular. Blood flow to the brain and brain waves. You can see someone experiencing a period of time when he saw a bulge the eyes move left and right because it is in REM sleep, the eyes move quickly from left to right.

During active or REM sleep that a person has a dream that most will not remember when waking from sleep. You also run into immobility ie can not move your muscles. This is useful so you do not move according to your dreams so you harm. Usually someone is having a dream about once every 90 minutes in a sleep cycle.

Active sleep periods lasted for 25 percent of our total sleep period. During active or REM sleep, the body restore certain functions of the brain and improves mental. At this time the mind will select, process, organize, delete things that are unimportant and retain experienced earlier in the day as when someone recording the movie and will prepare the brain and the mind to accept a new statement the next day.When active sleep, the brain will remove the short-term memory or data is not important and maintaining long-term memory. This is what makes the sleep, the mind feels fresh because the brain more memory available for use again.

Moreover, as long as you fall asleep, the body produces T cells can be against pathogens or germs. And while falling asleep, the body also produces the hormone leptin to regulate appetite.

For your body to feel the benefits of good sleep, a person must experience all the sleep process and in sufficient time. If we are sleep deprived, it will be difficult to concentrate, memory loss, and vocabulary, decreased ability to think analytically, and loss of creativity. Even the lack of sleep can increase anxiety and depression. Thus, work that you get enough sleep every day and feel the benefits.