What health problems can hair reflect to us?

According to Chinese medicine, the kidney is the main bone, which produces bone marrow and hematopoiesis. Besides blood, hair can reflect many aspects of our health, such as kidney qi, dark hair, kidney deficiency and white hair. Hair can also reflect whether our diet is balanced. For example, children with occipital baldness can reflect their lack of collagen, and trace elements such as zinc and iron can also be expressed in their hair.