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The brain receives the excitement from the afferent nerve, and then releases the excitation, and controls the excitation of the muscles through the efferent nerve.
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Then you just need to look for the events or things that distract you!
Nervous excitement in the brain does not mean that the mind can be concentrated! Brain nerve excitement is just adrenaline rising, so that the brain is in an excited, awake, alert, and even nervous mental state, just like a person is being chased by a tiger in the forest, the adrenal glands immediately soar, so that the person remains awake, alert, nervous, the brain nerve informs that the whole body muscles need to be tightened, use the whole body strength with tight breathing, to escape, but if the brain is excited, and you sit there alone, thinking about things, or reading books and other behaviors, what will happen to your mind? You can't stop thinking at all, you're nervous, you're short of breath, you don't know where to focus your attention, but you're alert, you're awake, but you don't know what you're doing.
Usually after 14 cups of coffee or a nerve-stimulating drink can be so dangerous, because these so-called refreshing substances make people's brain nerves work non-stop and their hearts beat faster, just like a person who is being chased by a tiger in the forest and finds that he doesn't know what he is doing! )
So, don't think that your problem is in the brain, but in your consciousness. Consciousness determines everything, and everything is created by idealism. If you find the wrong source of the problem, you often put yourself in more dangerous places.
Ask yourself why you can't concentrate on one thing, what event, what problem, what caused this, what did you run away from, and did you choose to face it? Or do you want to continue to run away from your own problems? Let yourself not be able to live as you wish.
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Anger, excitement, sadness, joy, and so on can all excite the brain.
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The brain is like the headquarters of the human body, and it is responsible for the sensorimotor and reflex activities of the whole body. It emits nerve fibers through the brainstem, which in turn emits cranial nerves innervating cephalic and facial muscle movements. At the same time, nerve fibers emitted by the brain are transmitted through the spinal cord to the muscles of the limbs and trunk, and the spinal cord acts as an information highway to receive information from the brain.
At the same time, sensory information from the body and internal organs is transmitted upward through the spinal cord and fed back to the brain. The brain then makes timely and precise adjustments to the body based on the feedback information. The brain cannot control everything in the body, many organs and systems are controlled by the spinal cord, which controls and manages the human body together with the brain.
Nerves are found in every corner of our body, and the "terminals" of all 'nerves' are connected to the brain and spinal cord, and the "starting point" is connected to the muscles, organs, etc. around the body, and the brain controls the body by receiving and releasing 'nerve impulses' (biocurrent signals). The human nervous system can be divided into two parts, the central nervous system and the peripheral nervous system. The central nervous system consists mainly of the brain and the spinal cord hidden in the cones, and the spinal cord functions as a link between the brain and peripheral nerves.
When the body wants to move, the brain's instructions (nerve impulses) pass through the spinal cord to the peripheral nerves, where the muscles move the bones together.
Muscle movements and nerve impulses require the consumption of adenosine triphosphate (ATP), a high-energy compound that provides energy to nerves and muscles.
When adenosine triphosphate** is insufficient, our muscles are unable to move. This is the principle of weakness after strenuous exercise.
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One of the roles of calcium in the human body is to be involved in neuromuscular stress processes. At the cellular level, it acts as a coupling factor between nerve and muscle excitation and contraction, promotes the release of neurotransmitters and hormone secretion regulators in endocrine glands and endocrine glands, conducts nerve impulses and maintains heart rhythm. The main symptoms of neuromuscular excitement are tingling, numbness, spasms of the hands and feet, and stiffness.
This disease is easy to be ignored or misdiagnosed by doctors, and you should go to a professional hospital for professional examination. Calcium has a sedative effect. When the concentration of calcium in body fluids decreases, the excitability of nerves and muscles increases, muscles contract naturally, and in severe cases, convulsions occur.
When the concentration of calcium in body fluids increases, the excitability of nerves and muscles is inhibited.
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The human brain is like a machine, if a machine is allowed to work for a long time, its efficiency will become lower and lower. Similarly, if a person uses the brain for a long time without letting it rest, its efficiency will also decrease. In the end, you don't learn as much in two hours as you learn in half an hour when your brain is excited.
Speaking of this, you may ask how to improve efficiency, in fact, there are many ways to improve learning efficiency, and it requires all aspects to work together to achieve good results.
Let the brain have enough time to rest, which is a necessary premise to improve learning efficiency, if the brain does not have sufficient rest, its internal cells are often partially in a semi-sleepy state, and can not be active, in order to make the brain fully active, to achieve a state of excitement, it is necessary to have sufficient rest time, otherwise, to improve learning efficiency, just an empty word.
If a person works for a long time on one thing, he is often easy to get tired, and when he changes to a new thing, he will immediately develop a strong interest, perhaps this is the bad habit that people often say "like the new and hate the old". The human brain suffers from the same bad problems. Therefore, in the process of learning, it is important to understand this first.
After studying a subject for a long time, it is beneficial to change the course and change your way of thinking, which is very beneficial to improve the learning efficiency. For example, after you've been doing math problems for a long time, why not learn English, memorize some words, and turn abstract math thinking into memorization thinking, which will often yield good results. But the "subject change" mentioned here is not the kind of frequent exchange, frequent exchange of subjects to study, in fact, a waste of time, not learning at all.
It is also often the case that after you change subjects, you still feel that your brain is not in a state of excitement, and then I think your brain is really tired and you should give it a temporary break.
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Top 10 tips for keeping your brain young and vibrant.
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The brain is the main part of the central nervous system, located in the cranial cavity. The brains of lower vertebrates are simpler. The human and mammalian brains are particularly well developed and can be divided into three parts: the cerebrum, the cerebellum and the brainstem.
1) Brain: It is the highest part of the nervous system, which is composed of two cerebral hemispheres, the left and the right, and there are horizontal nerve fibers between the two hemispheres. Each hemisphere includes:
Cerebral cortex (cerebral cortex): is a layer of gray matter (the concentrated part of the cell body of nerve cells) on the surfaceThe surface of the human brain has many concave sulcus (fissures) with a raised gyrus between the sulcus (fissures), thus greatly increasing the area of the cerebral cortex.
The human cerebral cortex is the most developed, it is the organ of thinking, which dominates all the activities in the body and regulates the balance between the body and the surrounding environment, so the cerebral cortex is the material basis for high-level neural activities.
Medulla: Also known as white matter, it is located inside the cerebral cortex and is made up of nerve fibers.
Basal ganglia: In the white matter at the base of the hemisphere, it is formed by the concentration of nerve cells.
2) Cerebellum: In the posterior and lower part of the brain, it is divided into the vermican in the middle and the enlarged cerebellar hemispheres on both sides, and the gray matter on the surface is the cerebellar cortex, which is divided into many lobules by many transverse grooves. The inner part of the cerebellum is made up of white matter, called the medulla, which contains nerve fibers associated with the brain and spinal cord.
The main function of the cerebellum is to coordinate the movement of the skeletal muscles, maintain and regulate the tension of the muscles, and maintain the balance of the body.
3) Brainstem: including diencephalic, midbrain, pons and medulla, there are many nuclei or nerve centers formed by nerve cells, and a large number of ascending and descending nerve fiber bundles pass through, connecting the brain, cerebellum and spinal cord, and linking all parts of the central nervous system as a whole in morphology and function. The spaces in the various parts of the brain are called ventricles and are filled with cerebrospinal fluid.
In the human body, the brain is usually divided into four parts: the cerebrum, cerebellum, diencephalon and brainstem (including the midbrain, pons and medulla oblongata).
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