《黄帝内经·素问·金匮真言论》
东风生于春季，病多发生在肝，肝的经气输注于颈项。南风生于夏季，病多发生于心，心的经气输注于胸胁。西风生于秋季，病多发生在肺，肺的经气输注于肩背。北风生于冬季，病多发生在肾，肾的经气输注于腰股。长夏对应土，病位在脾，脾的经气输注于脊。
东风生于春，病在肝，俞在颈项；南风生于夏，病在心，俞在胸胁；西风生于秋，病在肺，俞在肩背；北风生于冬，病在肾，俞在腰股；中央为土，病在脾，俞在脊。
The east wind originates in the spring, and most illnesses occur in the liver, and the qi of the liver's channels flows into the neck and shoulders. The south wind originates in the summer, and most illnesses occur in the heart, and the qi of the heart's channels flows into the chest and ribs. The west wind originates in the autumn, and most illnesses occur in the lungs, and the qi of the lung's channels flows into the shoulders and back. The north wind originates in the winter, and most illnesses occur in the kidneys, and the qi of the kidneys' channels flows into the lower back and hips. Late summer corresponds to earth, and illnesses occur in the spleen, and the qi of the spleen's channels flows into the spine.