No power point was found during the practice, which led to cervical tension, neck compensation and arm numbness. It is also because the cervical vertebrae and submucosal lymph are not detoxified well, the roads are impassable, and the blood is not circulating, which also leads to arm numbness. When you feel numb in your arm during the exercise, you should immediately quit asana exercise and wait until it is relieved, so that the meridians and blood vessels can have a buffer time. This can not only improve the cervical spine and arms, but also be very safe. Pay attention to the flow of breathing and always pay attention to the changes of your body bit by bit. Yujiali College