The brain is the set of organs which are the basis of thoughts and emotions; without it, the human spirit would simply not exist.
Of course, although we all consciously experience first person thanks to the brain, we know very little about this structure of the human body. Its complexity and the speed with which it does its job make it almost impossible to know in detail what is happening to it at any given time. This is partly why it is one of the most mysterious anatomical structures.
In this article we will see various curiosities about the brain which helps us understand how incredible this point of connection between psychology and biology can become.
The most impressive curiosities about the brain
These are some of the reasons neuroscience is such a fascinating field of study.
1. There is a part of the brain dedicated to recognizing faces.
Instant facial recognition is one of the most defining characteristics of human beings, and it facilitates social relationships in a species as gregarious as ours. It is a skill that we appreciate thanks to a trace of the cerebral cortex called the fusiform gyrus, Which is also activated when we see face shaped shapes in what is called paridolia.
2. The brain could be the union of two nervous systems
There is a theory that the central nervous system is the product of the union of two nervous systems that developed separately over millions of years of biological evolution: one dedicated to the capture of environmental stimuli, and the other dedicated to the moving parts of the body. For example, we have seen that in mollusks such as octopus, there are barely a few connection points between the brain and the neurons that activate the tentacles.
3.60% of these fats
As unbelievable as it may sound, most of the brain is basically large. Specifically, most of the fat is accumulated in what are called myelin sheaths, Which cover part of the neurons called axons so that the electrical impulse that these cells transmit goes faster.
4. It never stops working
The brain literally keeps being activated. It does not stop being turned on even when we are sleeping or when we are losing consciousness due to stroke or illness. One of the curiosities of the brain is that its pace of work adapts to the needs of the moment, but the only time it stops doing so is when it dies.
5. He has no pain receptors
The brain is full of nerve fibers, however he is unresponsive to pain unless this “signal” reaches him from other parts of the body. This means that, following certain procedures, it is possible to leave it uncovered during operations with the person in the know; in these cases, parts of the cerebral cortex can be cut a little, and the patient should not notice anything.
6. The amount of brain neurons is incredible
There are about 80 billion neurons in the brain. In addition, different parts of it have a higher concentration. For example, the cerebellum is known to harbor a high density of neurons.
7. It can adapt to the disappearance of one of its parts
The brain is a collection of organs that has a great capacity to adapt to injuries, Given the importance of the functions it performs. This means that in some cases, some people lost almost half of their brain, and yet they survived. When something like this happens, the parts that stay healthy “learn” to do much of the work that the parts that are dead or removed did before.
8. The most numerous nerve cells are not neurons
There are two basic types of nerve cells: neurons and glial cells. The latter are much more numerous than the former, representing 85% of the brain.
9. We lose neural connections
When we are born, each of our neurons is, on average, more connected to its peers than when we are adults. That means over time there are interconnections that are lost, Probably due to a lack of use, retaining those that are most useful.
10. Each memory has two copies
Recent research has shown that by memorizing something, this information is stored in two different places at once: the prefrontal cortex and a part of the brain called the subiculum, below the hippocampus. In the first few moments, the memory used is what is stored in the subicle, however over time, this “copy” disappears and the prefrontal cortex is used., Which copes with long-term memory.
11. Brain damage changes our personality
Certain brain damage has been shown to switch you from one personality type to another. For example, damage to parts of the frontal lobe leads to disinhibition and aggression.