Nail half moon mark is the boundary between yin and yang meridians and the representative of human essence, so it is also called health circle. Ten fingers add up to 8–10, accounting for one-fifth of the nail area. Milky white is the best, the whiter the thicker. If 10 fingernails have no or only a half-moon mark, it means that the foundation is cold, and the body, hands and feet are particularly afraid of cold.

Tips: Pay attention to supplement protein, give priority to neutral milk, eggs, beans and fish, and then eat foods containing antioxidants, such as astaxanthin, coenzyme Q 10, tomato, pomegranate, etc.