Why do you sleep late in spring?

"I woke up briskly on this morning in spring", which finally sent away the long winter and ushered in a clear Wan Li. In the cool spring, birds and flowers were fragrant, but people were sleepy, listless and exhausted all day, and had no interest in enjoying the scenery in front of them. What's going on here?

This is what people often call "spring sleep". There are three main reasons for spring sleep.

First of all, the weather has changed greatly. When spring is warm and cold, blood vessels, body surface and internal organs will suddenly change from contraction in cold weather to expansion in hot weather. The expansion of blood vessels on the body surface makes blood expand to the body surface, which affects the blood supply ability of the brain. During cerebral ischemia, people will feel dizzy, weak limbs and unable to do anything.

Second, the air humidity is relatively high. The spring rain is continuous and the air humidity is high. After humid air enters the body through human breath, it is easy to wet and trap the spleen and stomach, which leads to abnormal operation of the spleen and stomach, which makes people depressed, weak in qi and blood, and produces bad emotions such as fatigue and dizziness.

Third, the brain lacks oxygen. At present, many offices located in high-rise buildings, the windows are basically closed, and the air circulation is mainly regulated by air conditioning system, resulting in the increase of carbon dioxide in the air, and the brain is sleepy due to lack of oxygen.

People who are prone to close contact with spring sleep are usually people with poor physique, easy fatigue or cardiovascular and cerebrovascular diseases. At present, patients with cerebrovascular disease have poor blood vessels, poor blood circulation and more severe cerebral hypoxia and ischemia, so the reaction of spring sleep is more obvious and lasts longer.

Mental workers are also favored by spring sleep. Mental workers sit in the office for a long time, their legs droop, muscles relax, blood circulation is not smooth, and blood often stays in the foot cloth, which makes cerebral ischemia and drowsiness happen from time to time.

It can be seen that spring sleepiness is an uncomfortable symptom caused by the untimely response of various organs of the human body to seasonal changes. It is not a pathological state, but it is not conducive to the healthy coordination between human body and mental state. Therefore, some people thought of solving the problem of spring sleep by increasing sleep. Unexpectedly, the more I sleep, the more sleepy I get. Why? Scientific research shows that people can sleep 7-8 hours a day, but improving sleep may reduce the excitability of the cerebral cortex and make it in a state of inhibition. The result is that the more you sleep, the more sleepy you get, and the more you sleep, forming a vicious circle, which makes people's spirits unable to cheer up for a long time.

Huangdi Neijing? "Four Qi Tunes the Spirit" said: "Spring is March, which is called Chen. Heaven and earth are beautiful and everything is glorious. Lie down at night and get up early, and walk in court. " It means that everything sprouts in spring, and nature is thriving. People should stay up late and get up early, go outdoors more and learn from nature. Therefore, not only can you not feel sleepy in spring, but you should also reduce your sleep time.

So, how to relieve fatigue in spring? Experts suggest that open the door and open the window often to make the indoor air unobstructed; Appropriately increase outdoor activities and carry out moderate physical exercise; When you are sleepy, you can smell wind oil, cool oil or flowers, which has a good effect on dispelling sleepiness and refreshing your mind. In addition, diet adjustment can also effectively help alleviate drowsiness. For example, eating as little fat as possible at lunch can reduce the burden of digestion and absorption in the gastrointestinal tract, ensure adequate blood supply to the brain, and thus improve the working ability of the brain.

Understand and deal with the spring sleep, so that it will no longer interfere with your work, and let quality sleep accompany you through every beautiful spring.

Tips on healthy habits:

Tyrosine in amino acids is the material basis for ensuring brain function. Once it is insufficient in the human body, it will inhibit nerve conduction, causing drowsiness, inattention, listlessness and listlessness. Eating more foods rich in tyrosine, such as yogurt, fresh fish, chicken, seafood, tofu, etc., can alleviate spring sleep and improve work efficiency.