The length of time a paralyzed elderly person can live depends on the condition. 1.If there is only paralysis of the limbs, everything else is normal, able to eat normally, usually take oral medication to improve circulation, prevent the recurrence of large cerebral infarction or cerebral hemorrhage, the patient can survive for a long time. 2.Patients with paralysis combined with difficulty in eating, if there is choking and coughing when eating food, accidentally choking into the trachea, can cause life-threatening. Patients with paralysis and difficulty in eating, if they have choking and coughing when eating food, accidentally choking on the trachea can cause life-threatening injury, and if necessary, it is recommended to perform gastric tube placement and nasal feeding of liquid diet, the patient can also survive for a long time. 3. Patients with paralysis and coma are in a serious condition and may have life-threatening injury at any time.