Spring sleepiness is a temporary physiological phenomenon arising from the natural climate and temperature rebound. It turns out that people are affected by low temperature in the cold winter and early spring, and the sweat glands of the skin contract to reduce the heat emission from the body and keep the body temperature constant. In spring, the temperature rises, the skin pores stretch, the blood supply increases, while the oxygen supplied to the brain is reduced accordingly, the brain work is affected, and the biological clock is not so accurate. With the warm spring sun, the magnetic field strength increases, and the body naturally responds to these. During the winter, the lack of sufficient vitamin D in the organism because of insufficient UV and sunlight exposure makes the immunity and working ability of the organism much lower. Together with the low vitamin intake as well, the body functions mostly in a semi-sleepy state when spring comes. As a result, we are particularly sensitive to changes in the weather at the turn of winter and spring. Some people call this “spring fatigue”. Although spring sleepiness is not a disease, it can also affect people’s study and work, such as students who are under pressure to study, busy white-collar workers, and drivers who must concentrate on their work, spring sleepiness is a very distressing thing for them. So with the arrival of spring, how can people stay away from spring sleepiness? Some people think that as long as the spring more sleep will not be sleepy, but in fact, it is not. In general, adults can sleep about 8 hours a day, and then increase sleep may reduce the excitability of the cerebral cortex, so that it is in a state of inhibition, people will become more drowsy, lethargic, the result is the more sleepy. The scientific approach can be from the following three points to prevent spring sleepiness: Method 1: the rhythm of life to regular To overcome spring sleepiness, first of all, the rhythm of life to grasp, do not stay up all night on the impulse to study two days, sleep early and late, should develop a more regular habits of life. Practice has proved that the winter habits to make appropriate adjustments, so that the body gradually adapt to the rising temperatures of the spring climate, is a key part of lifting spring sleepiness. For example, in order to keep warm in winter, usually close the door, in the spring we must often open the doors and windows, so that the indoor air is smooth; living should also pay attention to ensure a certain amount of sleep time. Enough sleep helps to eliminate fatigue. Method two: more exercise The earth spring back, everything revives the season, should be more out of outdoor activities, some moderate amount of fitness exercise program, can effectively improve physiological functions, so that the body’s respiratory and metabolic functions increase, accelerate the body circulation, improve the oxygen supply to the brain, spring sleepiness will be relieved. For example, early in the morning walk, do exercises, running, playing Taijiquan is very beneficial to lift the spirit. Method 3: diet conditioning Modern medical research believes that spring sleepiness is related to the lack of human protein, the body is in an acidic environment and vitamin intake is insufficient, so when spring sleepiness conditioning diet should pay attention to increase the intake of protein, such as an appropriate increase in fish, eggs, milk, soy products, pork liver, chicken, peanuts and other foods. ”When spring, food taste should be reduced acid benefit sweet, to nourish the spleen”, so the arrival of spring should pay attention to eat more alkaline food, neutralize the acidic products in the body, eliminate fatigue. Do not eat more cold, greasy, sticky food, and not too much alcohol. It is best to eat more fresh vegetables and fruits every day. Vegetables contain more alkali, more vegetables and fruits are ideal for improving spring sleepiness. Increase the intake of vitamins. For example, vitamin C has the role of manufacturing intercellular adhesion substances, which is helpful for the repair and growth of human cells; B vitamins have the role of preventing the dysfunction of the nervous system and eliminating mental tension. Therefore, eating more foods and vegetables rich in vitamins can have a positive effect on relieving spring sleepiness. In addition, nutrition experts also put forward the following recommendations: three meals a day do not eat too much, it is best to eat three to five meals a day, or stomach over-expansion, people are prone to sleepiness. Many people do not eat breakfast in the morning, which will cause the brain is not enough sugar supply, attention is not easy to focus, drowsy. In fact, a glass of milk for breakfast plus a few slices of bread is a good choice. However, it is best not to drink milk on an empty stomach, and it must be combined with starchy foods. Zinc deficiency can affect cognition and concentration, and seafood such as seaweed and kelp are rich in zinc, so it is appropriate to eat these foods 1-2 times a week. Warm winter weather makes the earth evaporate quickly and the climate becomes abnormally dry, making it easy for people to experience symptoms such as dry mouth, sore throat, nosebleeds, watery eyes, dry and itchy skin. The dry climate also greatly weakens the defense function of the human upper respiratory tract, thus inducing various respiratory diseases, such as influenza, pneumonia, asthma, etc.