Posted on Apr 28, 2022 44
Mysteries about the most important organ everyone supposedly has.
The brain is one of the most complex and understudied parts of the body. Although science has now made great strides forward, unsolved mysteries remain. For example, how does gray matter create memories? Why do we need sleep and why do we like to get stuck in a rug so much?
And in this article, has gathered 5 unexplained facts about our brains.
How is personality formed?
Although we reliably know that our personality is located somewhere in the gray matter, but we still can not understand what exactly the processes are and how to make us - us.
They have been trying to give a precise answer to this question for years. Some say that the personality is fully formed by the environment and upbringing, while others are sure that it is determined in advance by genes and physiology.
It is still unclear whose role is more important. Because it is very difficult to separate the influence of genetics and the environment. And although scientists have experimented many times, for example separating twins, no one has given an exact answer to this question.
Many are still inclined to give the primary role of the environment and upbringing. But here, too, perhaps: for example, why do children who grew up in the same family and similar circumstances sometimes have very different characters?
Why do we sleep and dream?
Scientists still can’t really understand why humans and animals need sleep. After all, it’s terribly inconvenient and impractical to pass out for a third of your life. How did evolution miss such a process and why is it so important?
There is speculation that it is needed to store energy. But humans get it from food, and no matter how much food they eat, sleep won’t go away. In fact, it turns out that people burn a lot of energy even during sleep, but still somehow wake up awake and rested (sometimes). And it is this that puts scientists on the spot. There are other theories. According to the most common of them, sleep is needed to normalize contacts between neurons and the removal of products of their metabolism. But there is no accepted and proven theory until now.
Dreams are also unclear. There is a lot of speculation - for example, they appear because of random triggering of neurons or during the transition of information from short-term memory too long-term memory. But there is no exact answer to this question.
How are our memories kept?
Scientists speculate that memories, like computer data, are stored in our brains in an encoded form in a special archive. But no one knows where this archive is and what it looks like.
Another thing that baffles scientists is that there are many types of memory. For example, some allow us to remember old events, to remember people after meeting them, not to forget smells, tastes, etc. We can also use our memory to remember what a cat looks like and, based on this knowledge, we can identify other cats even if they are a different size or color. This is where memory and imagination are intertwined.
One assumption is that memories are not encoded into files like on computers, but result from combinations of different neurons. But it is still unclear why some memories fade over time and how false ones appear.
Does free will exist?
Is there free will? Can consciousness control the brain or are we all slaves to it? Scientists have been trying to answer this question since the 1980s and have conducted various studies.
American scientist Benjamin Libet conducted an experiment: the subjects were asked to perform random finger movements under the watchful eye of sensors and MRI. The results showed that the subconscious mind decided whether to perform this action a few milliseconds before the person consciously did it.
One suggestion is that this result proves that freedom is only an illusion and that our brains trick us into believing that all of our actions are voluntary.