《黄帝内经·素问·阴阳别论》
太阳和太阴发病，则为半身不遂的偏枯症，或者变易常用而痿弱无力，或者四肢不能举动。
三阴三阳发病，为偏枯萎易，四肢不举。
If Taiyang and Taiyin are attacked by disease, it will manifest as hemiplegia or paresis of the part most frequently used, or as paralysis of the limbs.