A dream is a mystery of nature.
Slow sleep is divided into several stages. He is responsible for the restoration of physical strength. When a person falls asleep, the first stage of slow sleep begins. Human cells reach the greatest balance when the second stage of sleep sets in. It takes the main time to sleep. In this case, the optimal state of relaxation sets in. This phase gradually turns into the third and fourth stages, correctly speaking, into deep sleep.
Slow sleep is gradually changing fast. In this state of the brain, sleep is responsible for restoring our mental well-being. It is at this time that we see dreams. During the fast phase, the nervous system is suddenly activated, the breathing and pulse are quickened, then everything is restored. No one can give an explanation to this phenomenon. A person spends more time in the phase of fast sleep, if he is tormented by unsolved problems. Quick sleep is responsible for memory.
Dreams, in the opinion of somnologists, are a special state of the brain. They are seen by all people, but there are those who wake up at once forget them. Nobody will give a reliable answer to the question, why dreams are needed. It is believed that this is a side effect of brain activity. During dreams our unconscious tries to contact us and gives certain signals, which should be heeded. Several kinds of dreams stand out for somnologists.
Types of dreams.
Actual dreams are those dreams that show memorable moments in life. Creative dreams are dreams in which you can see a very important one that you did not know before (the periodic table that Mendeleev dreamed of him). The state of your body is reflected in physiological dreams. For example, if you are hot, then you can see yourself in a dream in a hot room, if it's cold, then vice versa, if you dream that something hurts, you should pay attention to it, etc. When we see dreams in which we win opponents, win a lottery ticket or hear the words about love, then this is compensatory sleep.
When a person is unsatisfactory, sleep can turn into a nightmare. Usually nightmares are seen by people with an unbalanced psyche. The causes of nightmares can be many factors. For example, often a nightmare is seen by a person who has a serious unresolved psychological problem, who ate up before bedtime, who had abused liquor the day before. The cause of nightmares can be a sharp rejection of any habits, the abolition of medicines that have been taken for a long time, etc. Cases and prophetic dreams are often - dreams that come true or warn. Dreaming is a mystery to everyone, and no one can give an exact explanation to any dreams.
The harmful sleep deprivation.
Lack of sleep state of the brain clearly does not improve. Lack of sleep often causes depression. If a person is not getting enough sleep, then his mental abilities are reduced, care is lost. During the day, special proteins are accumulated in the brain, which are necessary for the transmission of nerve impulses between cells. When we do not sleep, the proteins "clog up" the brain and interfere with the passage of signals. Bad sleep does not let you get rid of the bad habit of smoking. This habit, in turn, interferes with healthy sleep. In the human body over night, the level of nicotine decreases and makes sleep intermittent.
The habit of sleeping too long is also harmful, like lack of sleep. Scientists have proved that both those who are not getting enough sleep and those who sleep too much 2 times increase the risk of premature death. On average, a person should sleep about 8 hours a day.
The production of several important hormones for our body is associated with sleep. Hence - lack of sleep can damage our health. Up to 70% of melatonin is produced during sleep. Melatonin protects the body from premature aging, from various stresses, prevents cancer, and also increases immunity. Lack of sleep leads to a decrease in the production of growth hormone (growth hormone), which regulates the action of the nervous system, slows the aging process, improves memory. 2-3 hours after falling asleep, the peak of its production occurs. Anyone who wants to lose weight should normalize their sleep. Greleen - responsible for appetite, and leptin - for a sense of saturation. Increases appetite in those people who do not sleep.
Tips for a healthy sleep.
For a good night's sleep, use some tips. Easy exercise before going to bed will help make it sturdy. Remove physical overexertion. Do not eat chocolate before bed and do not drink coffee. These products contain excitatory substances. The temperature in the room where you sleep should be between 18 and 24 degrees. Try to go to bed at the same time, if possible. Do not watch the TV for a long time before going to bed and do not take your computer to bed. This habit makes the brain associate the bed with wakefulness. Have a good and sound sleep!