Taking a nap, whether from the perspective of health preservation or improving work efficiency, is very important, and people have begun to pay more attention to it. Taking a nap at work used to be considered lazy, but now people begin to pay attention to it. James Mas, a professor of psychology at Cornell University, encourages overworked managers to close their office doors, lock their mobile phones and take a 40-minute nap after meals. In the past, the Federal Aviation Administration of the United Kingdom and the United States prohibited pilots from taking naps in the cockpit, but now long-haul flight crews are allowed to take turns taking naps. Ibm now encourages its managers in 17 Asian countries to think of a nap as drinking coffee at work. Jerry Key, director of ibm's management development department in Sydney, said: "We hope that managers in the whole company will understand the importance of taking a nap and will not think that working 24 hours a day is excellent when making decisions."

From the perspective of Chinese medicine, when the heart meridian is in season, it is cloudy at noon. At this critical moment of yin and yang alternation, people had better be at rest and not interfere with the changes of yin and yang, so that the heart and kidney can intersect. The god of the heart is the god, and the god of the kidney is the ambition. At this time, the intersection of heart and kidney is to let the heart fire sink and let the kidney water come up.

Deep sleep is the intersection of heart and kidney, while false sleep and dreaminess are the intersection of heart and kidney. The stronger the ability of heart and kidney to intersect, the more energetic a person appears, which is why a person has no vitality if he doesn't sleep well. So, take a rest and sleep at noon, especially at noon, that is, take a little rest. Even if you can't sleep, it's good for your health to close your eyes and rest.

A nap is a nap, which belongs to the horse in the zodiac. What are the characteristics of horses? When people compare a person's mind to freedom, they will say "like a wild horse without reins". Why not use the donkey as a metaphor? In addition, there is a blind medicine called Ejiao in Chinese medicine. Ejiao must be boiled with water from Shandong Black Donkey and Ajing. Why use donkeys instead of horses at this time? What's the difference between a horse and a donkey? In the ancient culture of China, horses were regarded as fire, while donkeys were regarded as water and earth. A horse is such an animal. If you whip it, it will run to death, but the donkey is different. The more you whip it, the less it moves. If you slap it again, it will have no legs, which is why when we describe a stubborn person, we call him "donkey temper".

The main function of Ejiao is convergence, so it must be boiled with donkey skin. Nowadays, many people regard Ejiao as a medicine for enriching blood, which is actually from the perspective of Chinese medicine. Blood is red, just like heart fire, which is dispersed by the Lord. Eating Ejiao actually enhances the convergence function of blood. Ejiao is not enriching blood, but making blood relatively convergent. This is its real function.