Some interesting facts about brain
The brain is one of the most mysterious organs in the human body. Here are Some interesting facts about brain that will help to learn more about him.
1.The brain does not feel pain
Have you ever wondered how neurosurgeons perform brain surgery without anaesthesia? In the brain haven’t got pain receptors. But they are in the meninges and blood vessels. Therefore, when we experience a headache, it does not hurt the brain itself, but the surrounding tissues.
2.The brain works more actively when we sleep
While working, the brain creates electric fields, which can be measured on the surface of the scalp by the method of electroencephalography (EEG). It seems to us that during sleep the brain is turned off, but in fact, it works even more actively than by day. During the waking period, he produces alpha and beta waves. During sleep especially at its initial stages, theta waves. Their amplitude is greater than that of other waves.
3.Brain cells are not only neurons
One neuron has about ten glial cells. They provide neurons with access to nutrients and oxygen. Separate neurons from each other. Participate in metabolic processes and transmit nerve impulses.
4.Falling in love can be seen on MRI images
Someone thinks that falling in love is just a concept. But fMRI shots of the brain prove the opposite. People in this state are active areas of the brain associated with pleasure. The pictures show how “lights” the places in which there is dopamine – a neurotransmitter, which causes pleasant sensations.
The brain produces enough electricity to light up a small lamp
According to scientists from Stanford University, a robot with a processor that is comparable in intelligence to the human brain requires at least 10 megawatts of electricity to operate properly. And our neurons themselves generate enough energy during the day to light an electric bulb. In addition, some interesting facts about brain show that the brain works much faster than smart computers.
6.The brain consists of 60% fat
The brain is the organ that contains the most fat. Therefore, for his health, a diet rich in useful fats (omega-3 and omega-6) is so necessary. They strengthen the walls of brain cells, and also transfer and store fat-soluble vitamins. In addition, fats reduce inflammation and help the immune system work properly.
Nerve cells for survival need oxygen and glucose
These two substances are necessary for the functioning and survival of the human brain. If it does not get enough oxygen or glucose within 3-5 minutes, irreversible disturbances occur in it. Curiously, death is almost never instantaneous. Even if a person is beheaded, the brain does not die for another few minutes, while in his cells there is oxygen and glucose.
The memory capacity of the brain is practically unlimited
It is impossible to know too much or to get so much new information that there is nowhere else to place it (although that seems to be the case after long meetings). In our brain, unlike computers and phones, the place never ends. Although, lack of sleep can negatively affect the ability to remember data.
The brain, as well as the muscles, apply the rule “Use or will lose”
We can expand our cognitive reserve, or the innate ability of the brain to recover, through various types of learning and new experiences. Scientists proved that people with a more developed cognitive reserve coped better with surprises. But if the brain is not used, this reserve will be reduced.
Short-term memory is enough for 20-30 seconds
Have you ever wondered why after we briefly distracted, we forget what we wanted to say? This is due to the ability of the brain to retain in memory a small amount of information.
It saves it for quick access, but only for 20-30 seconds. Numbers, for example, are held in memory for an average of 7.3 seconds, and letters – 9.3.