brain, like everything human body, the result of many millions of evolutionary modification.Personality, talent, intelligence, logic, character, all these and many other features of human nature is securely stored in its depths, as well as, however, the information that a person remembers, and which works.Therefore, the brain is often compared to a computer hard drive, a so-called hard drive, which is also how the brain is capable of storing structured data.But this is not true.Biological concepts in the brain, is very different from its technical counterpart.The information in it is transmitted using a set of interlaced cells, called neurons, which come into communication with each other by means of subtle connections - synapses, through which passes an electric signal.The information in this form is the result of concepts, judgments and conclusions, and is stored in the form of images, which are connected to each other by association.These images that are professional, scientific, entertainment information or memories that come to memory in the process of human life, are required to confirm their importance by the tracks, which are formed of neurons by passing them electrical signals.This occurs, for example when a student repeats studied lecture, or just scroll the life memories in my head.Also, because of these tracks not only the information saved in the memory, but also created a skill.To perform the movement, for example, hand in hand muscles are sent from the brain electrical impulses.The signals received in the hand and sent back to the brain, creating a model of such utter route.Under repeated movements signal becomes familiar and much easier to take this route with each repeated motion.The same can be said about playing a musical instrument, performing acrobatic movements, and even memorizing poems.Skill occurs only when multiple repetition of certain actions.
Thus, the whole body depends on the electronic impulses that the brain operates, and does it quite rationally.Special condition it reaches, when the body gets into an extreme situation where the brain has to work for survival.In times of danger, when one intends to flee (for example, by the unexpected forest fire, and others.) Impulses the brain gives the adrenal glands secrete adrenaline, that is, in this way it is temporarily strengthens the muscles, which increases the productivity of the entire body.As a result, the heart begins to work harder, blood ceases to feed the processes that are not needed at this time in order to save, such as digestion, and more and more goes to the muscles, saturating them with oxygen, thereby creating conditions close to the most favorable for the survival of the organism.The brain is able to even slow down time, if need be, as it were, fantastic as it may sound.The fact that the average person can not see more than 30 frames per second.In emergency situations, the brain increases the figure to receive more data in less time, with the result that there is a kind of illusion of time dilation.
brain also decide - what we eat.The need for food, still being in first place in the pyramid of needs Maslow as a physiological need, also born in the brain.If there is such a need, the brain has "scan" your body and revealed a lack of certain nutrients, vitamins, etc., which must be obtained from food.If they did not receive the body for a long time, the instinct of survival.The brain begins to secrete orexin, a hormone wake.It is necessary to maintain the health of the body for the time spent on the production of food.If a long period of time, the person still has not managed to get it, the body moves as if in "offline mode."The brain begins to "feel sorry" waste energy on other organs, to preserve their own health.Thus, we can safely say that the brain is the most important organ in the body and consumes a quarter of the energy of the whole body.
human brain works almost continuously, thus has the ability to heat up.In the normal state in average brain heated 1 degree per 5 minutes.It cooled blood, which transfers heat to the skin surface, followed by the evaporation of sweat from the face and forehead.
brain works well, when a person is asleep.The mystery of the dream still remains an open question in science.At nightfall, a small gland in the brain helps release natural sleep aid - melatonin, which is affecting the nervous system, causing drowsiness.Brain cells worked all day, but at night they need restoration work.When the body is turned off, each brain cell literally comes to life, causing the brain programs the different visions and situations, which in interaction with disabled logic can open man's eyes to the decision not previously solved problems.For example, Einstein, thanks to a dream where he rode a sled speed of light, discovered the theory of relativity, Niels Bohr, thanks to dream about horses, I realized what it consists of an atom, Salvador Dali, he argued that in some paintings depict the content of their dreams.
brain - this is a whole universe, weighing 1.5 kg, the secrets of which humanity is just beginning to learn.
