Why did the ancients say "don't be greedy for three colors, don't like to eat more"? What is the truth in this?

Food, clothing, housing and transportation have been very important to people's daily life since ancient times, but diet and sleep are indispensable. For modern people, the quality of diet and sleep will affect the next day's work. The ancients also saw the importance of diet and sleep, so they came up with the phrase "don't be greedy for three colors, don't like eating more than one food" So what does this sentence mean? What truth does it contain?

The word "midnight" in "Not greedy for the night" refers to the period from eleven o'clock in the evening to one o'clock in the morning, and the word "color" here refers to the beautiful scenery at night. In the middle of the night, don't delay your sleep because you want to enjoy the scenery at night, but follow the law of everything and go to bed early, which will be good for your health.

In the sentence "don't love a watch", "a watch" refers to the time from seven to nine in the evening, and "food" refers to the food you eat. This sentence means that after dinner, don't be greedy and eat supper. You should control your appetite reasonably. You can't increase the burden on your stomach just because you are greedy before going to bed. This will affect your life and health, which is not conducive to longevity. After all, the ancients longed to prolong life, so they all had unique opinions on health preservation.

To sum up, "don't be greedy for three colors, don't love more than one kind of food" is to develop a regular schedule. Because the ancients paid great attention to health preservation, they summed up this truth and advised people to have a schedule that conforms to the laws of nature for their health, so as to ensure the quality of life.