What health problems can be seen from hair and nails?

As the saying goes, a bad liver makes life dull. Liver metabolism is closely related to health. To know whether the metabolism of the liver is normal, we can see clues from the hair and nails. Although hair and nails have no nerves and do not directly show pain, they are important chemical system recorders in the human body. Most people don't care about hair because they think it can be trimmed at any time, and it doesn't seem to have any effect. Hair is not that unimportant. On the one hand, it can protect the head. In addition, hair can moisturize and keep warm, just like an antenna, which can strengthen the induction of temperature. You can also record your body's nutrition or diet, such as checking whether you are poisoned or using banned drugs. You can find the answer by checking your hair, because hair is like a time recorder, recording your metabolism. Description in Chinese medicine: The main muscle of the liver is the claw (nail). It means that the liver and blood are sufficient, nourishing the tendons and veins, and the nails are rosy.