If the man did not have the ability to dream, you would not be reading this magazine, we probably would still be in Prehistory - at best. The dream that came for about 140 million years ago, when mammals evolved from reptiles, is important in the learning process.
According to the suspicions of some scientists, nocturnal mental activity is also crucial for the preservation of the species. "No dream, our intellectual capacity would be compromised," said the Brazilian neuroscientist Siddhartha Ribeiro, Duke University, USA. And the human being, this fragile beast before the threats of nature, could not take much advantage of their most powerful weapon - the brain. The scenario is not encouraging: science evolve very slowly, we would live in fear of everything and would be dominated by other dreamers animals.
This all happen if our species as a whole could not dream. But the fact is that some people really do not dream. They suffer from a rare disease, Charcot-Wilbrand syndrome, which usually occurs after a stroke and tends to be accompanied by visual problems. Moreover, some drugs, such as antidepressants may reduce, especially at the beginning of the treatment, the duration of REM sleep, which is the stage of sleep in which they occur almost all dreams. In the first case, the results can be devastating amnesia, aggression and anxiety symptoms are some probable. In the second, the very medicines help control the symptoms of lack of dreams.
A meaningless world
Confusion is the mildest consequence we would have to face the chaos of a life without dreams
unowned Nobel
We lose the ability to solve problems. Some recent research related the dream to insights, which are those brilliant balconies that change the world, like the invention of the wheel. The German chemist Kekule, named as one of the discoverers benzene - ring-shaped molecule with six carbon atoms - said the finding came from a dream in which he saw a snake biting its own tail.
What are you afraid of?
The psychologist Antti Revonsuo of the University of Turku in Finland, says that the dream serves to simulate actual threats. A caveman, the dream of a predator, would have more chances to defend the animal. Without dreams, we would be vulnerable and afraid we would all, without discrimination - whatever the threat is a mammoth or an ant.
Animals in power
The man has established itself as the dominant species due to their intellectual abilities. Without the dream, learning would be compromised. Would not learn to write, we would not have the capacity to develop agriculture, to coin money, to make atomic weapons ... we would, in short, a kind without great talent. And some other animal that dreams - mammals and birds - could take our throne in nature.
Killed by own stupidity
Against the theory advocated by the Finnish Antti, there is the idea that we would lose the fear. The reason, again, is the lack of discernment. Because not dream, we could not evaluate right the dangers involved in our decisions. So we would do very stupid things that would put our lives at risk all the time - like jumping from a building behind a wind-driven note window.
Killers by nature
We would be more anxious, violent and surtados. This is because the dream is to solve part of the problems we have not solved the day-to-day, as the shot that we wanted to give the guy who makes silly in traffic. Without this outlet, we would be inclined to resolve all our conflicts and disagreements during the day. And people kill - even - to each other.
Mental confusion
Dreams become short-term memory - the content of a lesson, for example - in long-term memory, which can be retrieved in the future. No dream, we would be unable to organize the information you enter on our own. We would live all the time in a state of mental overload without assimilating anything, as if we were all the time in a street in Salvador, Carnival, hearing 10 trios electric at the same time.
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