Nature
Such disharmonies are a major feature of Chinese understanding of health, disease and medical treatment. A pattern of deficient [Blood] exists when the entire body, or an individual [Organ], is insufficiently nourished by the [Blood]. Signs may be a pale, lustreless face, dizziness and dry skin.
Background
The Chinese term [xue] is often translated as "blood," but it actually refers to a complex concept of which the blood itself is only a part.