I believe many friends often have dreams, and some dreams are even real. We don't think it's fake at all in our dreams, but we think it's the real world. Only when we wake up do we realize that this is just a dream. So someone put forward a guess that the dream may be true, just something that happened in another parallel world.
If dreams are real, does that mean that dreams are the patent of human beings? Other animals don't dream? However, scientists have proved through a large number of experiments that animals also dream, and dreaming is not a patent of human beings. Generally speaking, animals with higher brain development can dream, but in nature, mammals are all advanced and can basically dream like humans, and fierce carnivores are more likely to dream.
So how do animals behave when they dream? Sometimes, when animals sleep, their legs will shake and their beards will shake. In fact, this time shows that they are dreaming. I believe many friends like to keep cats. This is an animal that loves to sleep. In fact, human beings also love to sleep. On average, one third of the time is spent in sleep every day.
So how do scientists determine that animals are dreaming? In fact, this is mainly related to the relationship between dreaming and the brain. According to scientists' research on human dreaming, we are active when we dream, and sometimes we are as active as when we work during the day.
If we are not dreaming, then the brain activity detected by the instrument is relatively weak and we are in a deep sleep state. But if there is a dream, then brain activity will be activated and become more excited. At this time, it can be detected by instruments. Of course, without this instrument, we can also determine whether a person is dreaming, that is, open his eyelids to see if his eyes are rolling. If so, you are dreaming.
Scientists call your sleep when your eyes are rolling "REM sleep", when your body can't move. During REM sleep, your brain is as active as when you are awake, but you are dreaming instead of thinking. Then animals will naturally have this kind of external performance when dreaming.
Scientists have found through research that almost all mammals and birds have REM sleep. However, cold-blooded animals don't seem to have REM sleep. Does that mean that mammals and birds dream, but cold-blooded animals don't? There is no clear answer to this at present.
Scientists like to do experiments with mice, because mice have many similarities with humans. Studies have shown that mice, like humans, have complex dreams and repeat what happened in their dreams. The researchers asked mice to complete specific tasks in a maze and found that this would produce special brain activity patterns. When the mouse fell asleep, this special brain pattern reappeared in the mouse's brain, indicating that the mouse was dreaming and walking in the maze.
A research report on the gray-headed birds shows that they also sing in their dreams by analyzing the excitement of brain neurons when they sleep. It can be seen that dreaming is a representation of reality and makes sense. Many dreams are related to your real life experiences. Whether people or animals, if things and experiences are not in real life, they will basically not appear in dreams.
Therefore, dreams are unlikely to be real. It is not only a manifestation of conscious activity of the brain, but also an illusory existence. So what's the use of dreaming? This matter has also puzzled scientists for a long time. Some people think that dreaming is useless, but others put forward the opposite opinion. They think that dreaming may be very important to the brain.
Scientists have studied the brain activity of sleeping animals. When animals dream, they cut off some brain functions. This part of the brain can keep animals still while sleeping. When this part of the brain doesn't work, animals start to make a lot of movements, as if performing dreams. This may indicate that animals are indeed dreaming, and it is a dream of "movement".
In another study, scientists monitored the brain activity of songbirds and then observed the brain activity of birds during sleep. Scientists have found that these two brain activities are almost the same.
Dreaming is not useless, it may play a very important role in animals or humans. Some scientists have proved that dreaming can exercise the thinking ability of the brain and make the connection between cerebral cortex enter a more reasonable stage.
Dreaming also has a very good effect on people's mental health. Some patients with chronic depression adjust their brain waves through computers, that is, let them enter appropriate dreams. After sleep treatment, they have improved to varying degrees.
It can be seen that dreaming is actually a kind of self-regulation of the human body, and moderate dreaming has many benefits to the body. Of course, if you dream too much, it is not a good thing, and it is also harmful to your health. Therefore, keeping a short dream experience every day is a positive and healthy performance. But if you dream for a long time, you should consider whether there is something wrong with your body and you need to see a doctor for treatment. Generally speaking, people who are weak tend to dream for a long time.
Of course, what is a dream? At present, no scientist has given a clear answer. Although most scientists think that dreaming is only a conscious activity in the cerebral cortex, there are some special dreams that are really difficult to explain in modern science. For example, some people predict what will happen in the future through dreams, and things really happen. This kind of dream is difficult for us to explain, so it may not be as simple as we think, and it may have more unknown mysteries waiting for us to solve.