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First of all, yawning and drowsiness in young people indicate that there is a lack of oxygen in the brain, which is mostly related to long-term mental tension and anxiety, stress, depression, overuse of the brain and other factors. Always yawn, first, relax your mind, exercise moderately during the day, and ensure sleep. Second, considering that it may be caused by mental fatigue, it is recommended to pay attention to rest, do not stay up late at night, do not overwork to make the spirit in a tense state, and pay attention to the relaxation of the mood.
Third, it may also be caused by insufficient blood supply to the brain, it is recommended to go to the hospital for a brain CT examination to clarify ** and then do the right symptoms**.
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Yawning is related to the concentration of oxygen in the body's blood. When a person is sleepy, it is actually in a resting state for a long time, the blood circulation is slower, the oxygen in the blood is consumed, but it is not replenished in time, the concentration of oxygen in the blood is low, and the brain shows a mild lack of oxygen. As blood flows through the brainstem, nerve cells in the brainstem that sense the concentration of oxygen in the blood sense it and give nerve instructions to speed up breathing to provide more oxygen.
Yawning is actually a deep breathing process, and people inhale more oxygen for a while, and they also get a little comfort in an instant. When people sit for a long time, exercise less, blood flow is slow, and breathing is slow, which is easy to cause less oxygen in the blood, and it is easy to yawn, which is the reason. The key here is that the brain is very sensitive to hypoxia, so there is the above reaction.
On the other hand, in the state of exercise, the breathing deepens, and even if the muscles are deprived of oxygen, the brain may not be deprived of oxygen, and there is usually little yawning. As for the tears when yawning, it is because when people yawn, their mouths are wide open, and they exhale as much breath out of their bodies as possible, in order to exhale carbon dioxide and inhale oxygen. With the action of yawning, a stream of gas exhales forcefully from the mouth.
The muscles of the cheeks, tongue and throat tense and contract, and the pressure in the mouth and nose increases. As a result of the increased pressure in the nasal cavity, it will temporarily block the work of the nasolacrimal duct to excrete tears, and the tears will not flow, and more and more tears will accumulate in the eyes. There will be tears in his eyes, and finally he will burst out of his eyes and flow to his face.
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This condition may be caused by autonomic disorders, it is recommended that patients need to slowly recuperate, and to eliminate mental tension, anxiety and other emotions in daily life, but yawning can also be caused by poor rest, so in daily life to pay attention to rest, if necessary, you can go to the hospital for an examination, and consult a doctor, but also to check the problem of blood lipids, etc., usually you can do some physical exercise in moderation, enhance the body.
1. Psychological adjustment: learn to relax. Most of the nervousness is caused by the patient's long-term high mental stress, which leads to the dysfunction of some nerves in the brain.
So it is necessary to regulate the nerves and learn to relax...2. Develop self-confidence. Use positive language to suggest to yourself every day.
It's okay to believe in yourself. If you really don't handle it well, don't blame yourself too much, and deal with it with the natural mentality. 3. Actively develop your own contacts, communicate with others more, and be open-minded and tolerant will allow you to gain more and more contacts and wealth
4. Develop good living habits. Take some steps before bed to help improve sleep quality. Don't stay awake late at night, think wildly, and develop a good habit of going to bed early and getting up early for mental health
5. With the help of family members. Love is the source of victory over all. When you are physically and mentally exhausted, you may wish to take the initiative to talk to your family, chat, and say everything you think to gain an emotional balance.
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Your child may be a little nervous, or a little tired.
Pay attention to increasing nutrition for your child and don't overdraw your physical strength. It is the time of the long body, such a young girl is very fragile.
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Prove you're getting enough sleep! If you feel sleepy, you have slept too much, and it is best not to sleep more than eight hours a day!
And yawning is normal, no need to panic! Yawning has a refreshing effect! It's like stretching your waist, when you feel tired, these movements have a refreshing effect!
So usually we say that yawning is contagious, and usually colds and fevers are contagious because of the spread of the virus, so why is yawning contagious?
This shows that what you speak is not vivid enough, unattractive, of course nonsense is to be spoken, when you train others to speak too professionally, there are people who don't understand, you talk about what you know, others don't understand naturally there is no spirit, the more you listen, the more sleepy you are. It is recommended that you don't take your lecture too seriously, make the atmosphere good, relax yourself, don't care about the result, and the process is more important.
In view of the scarcity of information given by the landlord, let's talk about it nonsense. >>>More
Because the body excretes carbon dioxide and reduces drowsiness. Generally, when you are sleepy, the carbon dioxide content in the body is high, and the brain sends out instructions to yawn, which can expel a large amount of carbon dioxide and inhale oxygen, reducing the feeling of drowsiness.
We yawn when we are very tired, very tired, or sleep deprived, and every time we yawn, we are in tears, why do people shed tears when we yawn?