Combing your hair every day and seeing strands scattered across the floor can understandably feel alarming. In Traditional Chinese Medicine, there is a fundamental saying: “The hair is the surplus of blood.” Think of your hair as blades of grass and your scalp as the soil that nourishes them. If you want to improve abnormal hair loss, trying to "fertilize" the hair strands directly is not enough—we must first restore health to the "soil" itself.