Although cerebrovascular disease is aggressive and deadly, the survival rate of patients with cerebrovascular disease has increased greatly with the improvement of science and technology and the continuous development of medicine. Because the survival rate has increased, the number of patients with residual effects has also increased. After the acute phase of a stroke (usually within 2-3 weeks), about 2/3 of patients have some residual brain dysfunction, such as cognitive and perceptual dysfunction, communication and speech dysfunction, mental or emotional impairment, and most often motor (often accompanied by sensory) dysfunction – hemiparesis. These patients place a considerable burden on both their families and society. After acute treatment in the hospital, patients with cerebrovascular disease generally choose to be discharged home. A significant proportion of these patients are bedridden for long periods of time and often end up dying from serious complications (e.g., lung infections, bedsores, etc.). Some of the patients underwent a rather strenuous self “rehabilitation training”, and although they partially recovered their limb functions, they often over-trained their muscle strength such as upper limb tension and grip strength; early on, they “walked” to increase the muscle strength of their lower limbs, and the patients would develop Patients may start to notice that their arms are always curled upwards, their armpits and upper arms (actually the pectoralis major and biceps) start to tighten, their fingers cannot open, and the more they clench, the more they die. The thighs were getting straighter and straighter until they were as hard as a stick, and the ankles especially liked to skew inward. This is what we medically call post-stroke “spasticity” and the typical spasticity pattern. It seriously hinders the recovery of the patient’s functional capacity. In order to prevent the above phenomenon, stroke patients should not take the restoration of muscle strength as a sign, but should use various techniques to break the spasticity pattern and establish a random, coordinated, discrete normal movement pattern, and carry out “early, correct and reasonable rehabilitation training”. Zhang Yanming, Department of Rehabilitation Medicine, Xuanwu Hospital, Capital Medical University So far, some biological and medical studies have not proved that highly differentiated nerve cells have regenerative ability, but some animal experiments and clinical medical phenomena have shown that brain functions (such as motor functions) lost after stroke can be recovered to some extent. These mechanisms have become the guiding principles of modern hemiplegia rehabilitation and are still being developed and improved.