Why are people sleepy in spring and tired in autumn?

1, seasonal variation. Because in winter, the nights are long and the days are short, but in spring, when the days are longer, there will be a sober feeling. Similarly, autumn is the same. In the season when everything grows in spring, the most important natural phenomenon is the rising temperature, so our brains will get more oxygen, so when our brains can't keep up with the oxygen supply, we will want to sleep.

2. Being sleepy in spring and lacking in autumn is actually a physical adjustment. After a long cold winter and high temperature in hot summer, the body consumes a lot of energy, so in spring and autumn, the body will go through a natural trimming process.

3. In spring, with the gradual increase of temperature, the skin pores expand and the blood supply increases, but the oxygen supply to the brain decreases correspondingly, so lazy, soft, listless, sleepy and other phenomena appear, which is manifested as the spring sleepiness inhibited by the central nervous system.

4. In autumn, although the perspiration of human body is reduced, the generation and emission of body heat and the metabolism of water and salt gradually return to the original balance. In this way, when the human body enters the physiological rest stage, various discomforts will appear, some symptoms lurking in summer will appear, and the body will feel inexplicable fatigue. For example, many people wake up in the morning and want to sleep again. This situation is the "autumn drought".

As the saying goes, it is good to go to bed early and get up early. Spring needs to ensure a certain amount of sleep time, which can reduce daytime sleepiness. This does not mean that the more time you sleep, the more you can eliminate the spring sleep. Spring brings vitality to the earth, and it is also a good opportunity for people to have outdoor activities. ?

People walk, jog, do exercises and punch in the morning exercise; Holidays, outings, mountain climbing and other sports can improve the body's function and make it adapt to climate change quickly, which is a positive measure to prevent spring sleepiness.