We usually sleep well, but sometimes we sleep badly as we call it. Then there are sleep courses that offer the helping hand. Apparently you can also learn to sleep. One sleeps as soon as he or she touches her bed and wakes up after eight hours, the other is awake for hours, it is because he or she cannot sleep or sleep. During the deep sleep we then have the as known as REM sleep. What's sleep and why are we sleeping?
During sleep we are in a phase of inactivity and our consciousness has changed in relation to the consciousness we experience during watch. The intention is to equip the body, including the brain, whose parts regulate the wake-sleep rhythm. This happens in the brain stem and the hypothalamus in humans and animals. The consciousness seems completely absent, but it is not, it has ended up in another state. I'll come back to both, but first something else. The sleep pattern that takes place in twenty-four hours is not the same for everyone.
How much sleep one needs changes per person and per age phase. You usually hear from the professionals in the field, such as the GP, other therapists, your trainer at the gym, but also your parents, that you have to sleep eight hours a day. That's not entirely true. Eight hours of sleep is the average number of hours of sleep that an adult needs, or at least about. Young people need more sleep than adults and older people do. Most people need seven to nine hours of sleep, but there are people who only need four hours of sleep to function properly throughout the day. As a rule we function during the day and sleep at night, but exceptions to that rhythm are certain. Some people work, partly, at night and again others spin the rhythm because they like it more, for their plausible reasons. However, society assumes that we make it to sleep at night. The criterion is always: can you function with the number of hours of sleep you take, you are equipped. If not, you've slept too little or too much.
The brain plays an important role here. Sleep is actually the absence of activity in two areas in, especially the rear part of, the punch, in the brain stem. The punch is the bridge, the connection between the large and the small brain and is part of the central nervous system. The rear part of the punch regulates sleep, breathing and taste. There are three nuclei in the brain stem that regulate the three neurotransmitters we know from the moments we're awake. The best known two side noradrenaline, a hormone that is often confused with adrenaline, and serotonin, the well-known so-called lucky hormone. They're keeping us awake. The above inactivation consequently makes us fall asleep. During our sleep, our consciousness changes.
During the day our consciousness makes us in contact with the world around us, in the night it focuses (even) more inwardly. During the day consciousness processes sensory stimuli of the environment, people and objects and reflects on the thoughts, emotions and needs of the person. When we sleep we are temporarily paralyzed and at deep sleep we end up in the so-called REM sleep. We then dream and cannot move our muscles that we tighten during the day to move. REM stands for "Rapid Eye Movement" because it has been discovered that our eyes move quickly during dreaming. There'll be a brain activity as high as there was during the watch. The punch, see above, is no longer responsible for the facial senses. The brain with all its power tries to create a connection in the chaotic flow of images of the dream, a story. Dreams are good for processing what comes to us during the day and contribute to the processing of impressions but also problems.
Het moge duidelijk zij uit deze summiere beschrijving van slapen dat slapen zeer noodzakelijk is. Wanneer je niet goed slaapt heeft dit vervelende gevolgen voor je functioneren wanneer je overdag waakt en waakzaam moet zijn. Langdurig tekort aan slaap leidt tot uitputting.