Every living creature has its own biological clock and needs time for activity and rest. The same is true for human beings. Under normal circumstances, we work and move around during the day, and at night we rely on sleep to rest and restore our mental and physical strength.
According to the research of scientists, at least one-third of human life is spent in sleep, while for a small number of people, less than one-fifth of the time spent sleeping in their lifetime. From a scientific point of view, the length and quality of sleep are very important to a person’s body and spirit.
In theory, it takes eight hours of sleep a day to better recover mental and physical strength. It is also the best for physical health. Of course, modern people can have high-quality sleep due to various pressures. There are fewer and fewer people.
I believe many friends know that when we are sleeping, we often dream. Some dreams are more ordinary and will remember nothing after waking up, while some dreams are very real. Even after waking up, we can still dream. Clearly remember everything experienced in the dream. There are also a few dreams that are “lucid dreams”, that is, you can realize that you are dreaming and can also manipulate what happens in the dream.
Dreams are a very magical physiological phenomenon. When we are in a dream, we don’t even feel that it is a dream, as if it is a real world and we are actually experiencing something. What makes people even more miraculous is some more bizarre and mysterious dreams. For example, some people seem to see the future in their dreams and write down the lottery numbers at the time. After waking up from the dreams, they bought this number in reality. ‘S won the jackpot.
This kind of magical vision of the future has made us more interested in dreams. So what is the matter of dreams? Is it an illusory scene or a real thing? In this regard, scientists have also put forward three speculations, the first one scares us.
1. Dreams may be real things happening in parallel worlds
I believe many of my friends have heard of the parallel universe. It is a bold conjecture put forward by scientists based on current scientific theories. Some scientists believe that our universe is not a single one, but is composed of many universes, thus forming a multiverse theory.
The multiverse is a theoretically infinite or finite set of possible universes, including all existing and possible things: all space, time, matter, energy, and the physical laws and physical constants that describe them. The universes contained in the multiverse are called parallel universes, also called parallel worlds, parallel space-time, parallel dimensions, etc.
Parallel universe refers to other universes that are separated from a certain universe and exist in parallel with the original universe, which are both similar and different. Among these universes, there are also universes that were born under the same conditions as ours. There may also be planets that are the same as the planets inhabited by humans, or planets with the same history, and there may also be people who are exactly the same as humans.
I believe that many friends have gone to a completely unfamiliar place in reality, but found that it always feels inexplicably familiar, and suddenly remembered that they had been here in a dream. This sensation is scientifically called the “sense of sight”, and it is a phenomenon that scientists are currently difficult to explain.
This kind of “sense of sight” has happened to many people in reality, but we don’t know why this is at all. Why does a completely strange place that we haven’t been to give us a sense of familiarity? For this phenomenon, some scientists explain that it may originate from a parallel universe.
It is the first time in this universe that we have come to a strange place, but before that, you may have been to this place in a dream or in another parallel world, so you have a familiar feeling.
A bold conjecture such as the multiverse is not a completely unfounded random conjecture. In fact, scientists have been actively exploring and studying the secrets of this aspect. According to the cosmic microwave background radiation map, some scientists have also found several traces of multiple universe collisions that are suspected to have occurred in the early universe.
2. Dreams may be related to Boltzmann’s brain
Perhaps many friends are very unfamiliar with the concept of Boltzmann’s brain. What is it? Boltzmann’s brain is an imaginary self-consciousness arising from the fluctuations of entropy in chaos. If you don’t understand, then let’s start with the law of entropy increase.
I believe that many friends know the law of entropy increase. It is the second law of thermodynamics and a great theory that reveals the ultimate outcome of everything in the universe and the universe itself. The law of increase in entropy represents a chaotic state of things. From the moment of birth, the entropy value of any thing continues to increase, and the entire system will become more and more chaotic, and finally usher in the end.
The life span of life, the life span of celestial bodies, the destruction of everything and even the destruction of the universe itself are all affected by the law of entropy increase. In the fluctuation of entropy, the universe itself may produce self-consciousness. This is a kind of consciousness similar to the human brain. We call it the “Boltzmann brain”, which is a free consciousness floating in the universe. .
Because humans do exist, then probabilistically, there should be a large number of “Boltzmann brains” in the universe. In addition to humans, there are many consciousnesses in the universe, but most of these consciousnesses are in the fluctuation of entropy. Disappeared quickly. Human dreams and inspiration may be related to Boltzmann’s brain.
3. Dreams are memory fragments in the brain
The human brain is a very complex and mysterious structure, and this structure can store memories. Will all memories be stored in it? Scientists believe that it will not. Just like the computer hard disks we use, while storing large amounts of data, it will also have a buffer memory for temporarily storing data.
These buffer memories will not be retained for long and will be sorted out soon. The same is true for human memories. Important memories are stored in the hard disk of the brain, but there are some memories, such as the corners of the eyes and the ears. The murmur of the body, the touch of the body’s skin touching the clothes, etc., these are some unimportant information, they do not need to waste brain space, but are temporarily stored in a place similar to a buffer space.
When we rest at night, the brain will integrate and process these garbage memories. In the process of this processing, the nerve impulses released are accepted by the nerves, resulting in various bizarre “dreams”.
Therefore, from a physiological point of view, the dream itself serves this purpose. It is a part of the brain’s memory, similar to the buffer space in the computer hard disk, temporarily storing some unimportant memories. During sleep, dreams are produced when these memories in the buffer space are sorted out. Perhaps this is a self-cleaning exercise in the brain to clear out these unimportant memories.
Since these memories are not important, it is difficult for us to remember most of the things we experienced in dreams, and will be completely forgotten in a short time after waking up. Of course, this still cannot explain those dreams that are particularly real and deep in memory, and it cannot explain the fact that things in dreams are actually performed in reality. For example, as mentioned at the beginning of the article, someone dreams of lottery numbers in dreams, In reality, he won the miracle of the jackpot.
It can be seen that dreams are indeed not as simple as we thought. At present, the scientific community does not have an accurate conclusion on the formation of dreams. Scientists in different fields have their own interpretations of dreams. Which one is correct requires our continuous efforts. We believe that with the help of science and technology, one day, we will be able to unveil the mystery behind the dream.