Everyone knows how sensitive the skin is to all kinds of influences: touch, pressure, heat, cold, electric current, chemical influences. There are many sensitive nerve endings in the skin, which respond to all this with a special active state — arousal. Arousal is the discharge of nerve cells: impulses, or shocks. The transmission of any external influence is also called signals. Thousands of such impulses can run through a nerve in one second. Physicists and chemists have discovered that complex reactions occur with every nerve impulse. Nerves and nerve cells not only become excited themselves, they can transmit it to neighboring cells and their processes. This is how arousal goes through the nervous system. The speed of its movement along human nerves varies — up to one hundred to one hundred and twenty meters per second, but often less. If the excitation is directed from the nerve branches of the skin or muscles to the brain, then, coming to the brain cells, it causes various sensations. We feel pain, cold or warmth, pleasant or unpleasant touch. If the excitation is directed from the brain cell to the organs, then it causes muscle contraction or the work of some gland. So, some nerves transmit sensations, while others transmit impulses to move or release juices. The work is clearly divided. How is arousal transmitted through the nervous system? There are specially arranged "gadgets" between the appendages of neighboring cells. They can only be seen under a microscope. It was very difficult to study their shape — they are so small and thin. They are compared to the smallest buttons, eyelets, ears, fasteners. Scientists are interested in what role these devices take in the work of the brain. They have been studied for a long time and now they know for sure that these are the junctions of nerve cells (from process to process, from process to cell body). Especially many such compounds were found in the cerebral cortex.
They are present in every layer of the brain and between layers. Their structure is particularly complex in the crust. Thanks to them, arousal in the cerebral cortex can spread in all directions: sideways, upward, and deep. Many brain cells from different strata are involved in the overall work at once. The English scientist Sherrington established that the main task of these devices is to connect neurons to each other. These are contacts in the nervous system. He called them synapses. The word "synapse" means "connection." That's how they found ways to transmit arousal. But not everything is known about the physico-chemical reactions that occur during this process. Ions are trapped — they carry electric charges. Permanent chemical transformations have also been found. They are extremely complex. 40 years ago, the Russian physiologist A. F. Samoilov wrote: the nerve cell secretes some kind of chemical substance. Its nature is still unknown. One might think that it excites the activity of the "neighbor" cell. Not so long ago, they discovered that a special chemical substance transmits excitement from cell to cell and from cell to muscle. But another substance delays its transmission. These are transmitters, intermediaries. They were called mediators. In addition, new chemicals are being found in different departments and floors of the brain. They are needed for brain activity. Recently, we have noticed substances that are contained in brain tissue in negligible amounts. These are trace elements — copper, iron, chromium, zinc, cobalt, silver, manganese, silicon, titanium, aluminum. Each trace element has its own "territory" in the cerebral cortex. Doctors, studying the chemistry of the brain, have found that in various diseases, some trace elements are in excess, while others are not enough. Then they began to treat people by injecting or removing trace elements into the body. This changes the nature of arousal and improves the life of the brain. For traders seeking maximum efficiency, our Dynamic Leverage account offers a key advantage. The system provides powerful dynamic leverage metatrader that automatically scales with your trading volume on both the MT4 and MT5 platforms. This allows for higher leverage on smaller positions to maximize potential, while systematically lowering it as trade sizes increase to protect capital. It’s a smart, automated risk management tool designed for the modern trader, ensuring optimal use of your margin at all times.
