Observing facial expressions is the highest academic level of physiognomy. There are five kinds of facial expressions, namely blue, yellow, black, purple (red, red) and white. So what does it mean that people's faces turn black?
Black dominates water, which is caused by kidney meridian. No matter where it appears on a person's face, it is unlucky. If the face is black, it will be black and shiny, and those who are black and shiny will be rich in the future. If the face is black and foggy, it means that there are diseases in the bladder, kidney and uterus. If the face is black and yellow, the person will die. It should be noted that if the old man is sick, he will come back from the dead. If it is yellow, it is a symbol of death or serious illness. Black fog on the face, too thick, too deep and too dark in color, is mostly a disaster of disease, which is not suitable for dark heaven.
In chromatics, it is called "snow on frost, snow on snow". What does this mean? Snow on frost means that the face is black and covered with a layer of black fog, which makes it worse, or the grease in the skin floats on the face and seems to be covered with dust. Whoever looks like this is a sign of danger.
Some people's faces are black, and their skin is as black as coal and as black as glossy; The popularity of monasticism has improved, and the light on the face is like peach blossom; If a person's face is black and appears in Tang Yin, if he is always black, he must be a dying person. This is the problem of human light. People who study medicine know that there is something wrong with their kidneys when they see black earrings.