Where does the phrase "men show their navel, women don't show their skin" come from?

China has been a country of etiquette since ancient times, but it has always been. In the past, our ancestors were very polite, even though they were meticulous in their clothes.

"Men don't show their navel" means that it was not a big problem for men to wear clothes and show their hands and feet in the past, but if the navel is not covered, it is disrespectful to others, causing others to resent it, thus leaving a bad impression. Of course, it's the same except navel and armpit.

Now, although we are free to wear slippers, beach pants and short vests in summer, we still have to dress appropriately in formal occasions.

"Women don't show their skin": In ancient times, there were actually great restrictions on women, especially before they got married, they were all blocked at the front door, not to mention showing too much on their clothes. The sleeves must be made very long so that they can hide their hands inside. When they are working, they roll up their sleeves and lift their skirts. Unlike some women nowadays, they want to wear nothing to cool down.

Even today, we should not be too casual on some important occasions. We should not wear shorts, vests and the like, and we should not be shirtless. This is very impolite. In fact, from a health point of view, you can't wear clothes that show your navel. If the navel is exposed, it is easy to get sick together and catch cold most easily.

When I was a child, when I slept at night, my family would cover my stomach and be afraid of catching cold, especially in summer, when the weather is hot, but I must cover my stomach and not show my navel when I sleep. The navel can't be exposed, not only for male friends, but also for everyone. This is from the perspective of our health, and I hope everyone will take it as a warning.