Cerebral blood supply insufficiency and limb weakness are not closely related, cerebral blood supply insufficiency is the emergence of one side of the limbs, including upper and lower limbs, face or a limb on one side of the sensory or motor deficits, weakness, etc., by the nervous system of the conduction pathway is determined by the limbs are weak to think of other diseases. Long-term chronic wasting disease patients, such as tumor patients, patients with various causes of anemia, due to disease caused by a weaker body or stroke disease bedridden patients, will appear limb weakness. Normal people will also appear limb weakness, long-term late night and lack of exercise will also appear limb weakness, there is no insufficient blood supply to the brain, low blood potassium, low blood sodium patients will also appear limb weakness, patients with insufficient blood supply to the brain, limb weakness, do not rule out the emergence of cervical vertebrae disease, it is recommended to the hospital for treatment. Nurture a good life, diet and routine, avoid long-term overwork, if there is cervical spine caused by insufficient blood supply or weakness of the limbs, through the use of massage, physiotherapy, acupuncture, conditioning treatment.