The crescent moon on the nail represents health. Is there any scientific basis?

In fact, there is no scientific basis for this. In traditional Chinese medicine, there is a way to judge whether you are healthy or not called "looking at your nails", but what he looks at is not the half-moon finger, but the color of your nails. Generally, those who are ruddy and shiny are healthy, and the half-moon shape refers to the relationship with the individual's innate physique and age. The so-called half moon refers to nails that are not keratinized in the process of nail growth, that is, semi-finished products of nails. In fact, most things circulating on the Internet have no scientific basis, so read more books. You can also watch a program called "Is it true? It has a more detailed explanation, and there are many things circulating on the Internet, which can increase more knowledge and dispel rumors. Thank you.