Why is it easy to feel sleepy in spring?

In spring, people often feel sleepy and don’t want to wake up after falling asleep. Spring is originally a time when all things revive and are full of vitality. Why do people feel sleepy instead?

It turns out that the human body's blood circulation has certain rules, and the blood supply to each organ also has a relatively stable amount of A. Whether a person feels sleepy is closely related to whether the blood supply to the brain is sufficient. relationship.

In winter, because of the cold weather, the body's own immune regulatory system will cause the capillaries under our skin to constrict, so that less blood flows into the capillaries and more blood can be supplied. to our brain, so it is difficult for people to fall asleep and wake up easily in a cold state. In spring, the weather gradually becomes warmer, the capillaries dilate, more blood flows into the capillaries, the blood supply to the brain decreases, and people become sleepy easily.

Spring sleepiness is not a disease. When this phenomenon occurs, just wash your face with cold water or go outdoors for some activities, and the tiredness will disappear. Of course, strengthening physical exercise and improving the contractility of the heart will help our bodies adapt to climate changes.