Indications: Deficiency and pathogenic toxins in the meridians of the chest, shoulders and back, toothache and neck swelling, cold chills and heat swelling, deafness and tinnitus, pain behind the ears, shoulder and arm pain, and skin swelling and itching. Exercise method: Between 1 a.m. and 5 a.m. every day, sit cross-legged. Raise your hands from the sides of your body to your armpits with the palms facing upwards. Rotate your hands inward and push them forward, with the palms facing forward and the fingertips pointing upwards. Extend your arms straight to the same width and height as your shoulders. At the same time, turn your head to the left. Bring your hands back to your armpits and turn your head forward. Push both hands forward and turn your head to the right. Do this forty-two times on each side. Then, follow the steps of tapping your teeth, swallowing saliva, and breathing in and out to conclude the practice.