We all dream, even if we don't remember it. Dreams have always fascinated people, it was believed that they are messages from the invisible world. In ancient times, interpreters of dreams have always been revered. The Bible says that dreams were used to predict the future.
Dreams have frightened, interested and puzzled people for thousands of years. At one time it was believed that the images that appear in a dream are a message from the gods, that the reason lies not in the person himself and that only people with special knowledge can solve dreams.
There is an expression "prophetic dream". The belief that a dream could come true was still characteristic of primitive people.
Science still cannot explain exactly how the sleep process itself proceeds. It is believed that there is a very complex area deep in the brain called the "sleep center". During the day, as a result of the action of the nervous and muscular system, calcium is sent into the blood. Calcium eventually stimulates the "sleep center" and we fall asleep. If calcium goes directly to the "sleep center", the person or animal will fall asleep immediately. But if calcium is introduced into the blood, this does not happen.
The famous psychologist Sigmund Freud believed that dreams reveal our secret desires.
Some scientists believe that we dream dreams to fix events in long-term memory, i.e. things to remember. Others believe that we are dreaming about things that need to be forgotten - unnecessary memories that "clog" our brain, interfering with mental work.
Research shows that women need one hour more sleep than men. And the fact that they are not getting it may be the reason for a much higher susceptibility of women to depressive disorders. It was also found that people aged 18 to 24 years lose more in productivity from lack of sleep than their older comrades.
Recently, scientists conducted an experiment: the subjects were allowed to sleep for the prescribed 8 hours, but they were woken up in the initial phase of each sleep. Three days later, all participants in the experiment, without exception, had difficulty concentrating, hallucinations, unexplained irritability, and the first signs of psychosis. When the subjects were finally given the opportunity to dream, the scientists noticed that the brain compensated for the lack of dreams in the previous days due to the longer than usual, the body's stay in the phase of REM sleep.
The record for the longest sleep deprivation was recorded in the world! It is 18 days, 21 hours and 40 minutes. The record holder spoke about hallucinations, paranoia, blurred vision, problems with speech, concentration and memory.
But not everyone can have colored dreams. About 12% of sighted people see only black and white dreams. Others dream in color. There are several typical groups of dreams that everyone sees without exception: situations at school or at work, trying to escape from pursuit, falling from a height, flying, etc.
In our dreams, we often see strangers, but we have no idea that our consciousness does not come up with their faces. These are the faces of real people, those whom we saw during our life, but did not remember.
It is known that in Roman times, Caesar's dreams were discussed in the Roman Senate. They were considered a message from the gods.
5 minutes after sleep, a person remembers only half of the content of his dream, and after 10 minutes he forgets it by 90%.
Research has shown that our brains are as active during sleep as they are when we are awake.
People who are blind from birth do not see dreams, as we see them - the sighted. They dream of sensations to which they are accustomed.
A person usually has four to seven dreams per night, but most of them are forgotten in the morning.
Scientists have proven that animals also have dreams. Observe your dog or cat, she will flinch in a dream, as we do when we dream of something terrible.
Erotic dreams are so real that they can lead to orgasm.
Sleep is affected by noises in the first and last hour of sleep. If you are awakened during this time, it will be difficult to fall asleep again.
Frequent dreams indicate high mental activity.
When a person is asleep, dreams are constantly being dreamed, but in a deep phase, for example, with great fatigue, they do not dream at all.
People who know how to manage their sleep by creating their own dreams are called aingers, and the dreams themselves are lucid dreams or OS.