The brain is one of the most important organs of the human body, without which life is not possible, however, little is known about the functioning of this vital organ.
However, every year many studies are carried out and some very interesting curiosities are already known:
- Although it accounts for only 2% of an adult’s total weight.
- Weighing about 1.
- 4 kg.
- The brain is the organ that uses the most oxygen and energy.
- Consuming up to 20% of the oxygen-rich blood pumped through the heart.
In some cases, during a test or study, for example, the brain may expend up to 50% of all available oxygen in the body.
The brain is not the largest organ in the human body, however, to receive all the oxygen it needs to function properly, it contains many blood vessels that, if placed face-to-face, would reach 600 km.
Different people have brains of different sizes, but that doesn’t mean that the bigger the brain, the greater the intelligence or memory.In fact, today’s human brain is much smaller than it was 5,000 years ago, but the average IQ has increased over time.
One possible explanation for this is that the brain becomes more and more efficient to function better at a smaller size, using less energy.
Contrary to popular belief, humans not only use 10% of their brain, in fact, all parts of the brain have a specific function and, although not all work at the same time, almost all are active during the day.quickly surpassing the 10% mark.
Almost everyone dreams of something every night, even if they don’t remember it the next day; however, although it is a universal event, there is still no scientific explanation for the phenomenon.
Some theories suggest that this is a way for the brain to stay stimulated during sleep, but others also explain that it may be a way to absorb and store the thoughts and memories it had during the day.
One of the most important parts of the brain, known as the cerebellum, is responsible for the movement of different parts of the body and is therefore capable of predicting sensations, which means that the body does not have a normal response to body tickling. person himself, since the brain is able to know exactly where each finger will touch the skin.
There are no pain sensors in the brain, so it is not possible to feel the pain of cuts or blows directly in the brain, so neurosurgeals can perform the surgery while awake, without the person feeling pain.
However, there are sensors in the membranes and skin that line the skull and brain, and that’s the pain you feel in accidents that cause head injuries or a simple headache, for example.