Tongtian point, Tongshan point and Tongguan point all belong to Dong’s Qi points. Tongguan point is located in the front center line of the thigh, five inches above the horizontal stripe of the knee, one on the left and one on the right; Tongtian point is located four inches straight up from Tongguan point, one on the left and one on the right; Tongshan point is located two inches straight up from Tongguan point, one on the left and one on the right. Tongtian, Tongshan and Tongguan points are important points for treating heart diseases and promoting circulation of qi and blood. They are good for treating chest tightness and chest pain, dizziness, palpitations (accelerated heartbeat, often accompanied by panic), etc. They can also treat gastric discomforts, such as gastric pain and distention; in addition, they can also treat edema of the lower limbs, joint pain, and flexion and elongation disadvantages (abnormal joint extension and bending functions). Note that the above acupuncture points need to be operated by a specialized doctor.