Time to head back into the world of Extraordinary Vessels...and today I'm going to discuss the Yin Qiao and Yang Qiao. I felt that it would only be fair to cover these two simultaneously, since they work in tandem. These channels balance out the energies of the lower extremities, eyes, and brain. There is a muscular balance that needs to exist to ensure a healthy, painless, even gait while walking, and these two channels have a lot to do with this. The Yin Qiao and Yang Qiao can be treated for flaccidity of the muscles of the medial and lateral lower legs. They also affect inversion and eversion of the foot.
Since both of these channels follow a trajectory to the eyes, they can be used to treat pain, irritation, and redness of the eyes, as well as more severe disorders such as glaucoma. The balance of these channels is necessary for appropriate opening and closing of the eyes; if there is too much Yang Qiao energy, the eyes will stay open. This will lead to insomnia. If the Yin Qiao energy is excess, the eyes will not be able to stay open, which will lead to somnolence (the inability to stay awake.)
Emotionally, the Yin Qiao is used for depressive mental disorders, such as spiritlessness, apathy, and sadness. The Yang Qiao, on the other hand, is used to treat hyperactive issues of the mind, such as restlessness and overexcitement.