How long you can live with vasospasm depends on the site of occurrence, the degree of spasm, etc., and needs to be analyzed on a case-by-case basis. Vasospasm is a strong contraction of the smooth muscle of the vessel wall, resulting in narrowing of the lumen and reduced blood flow through it. If the spasm occurs in the blood vessels of the limbs, due to the relatively high tolerance of ischemia and hypoxia in the muscles of the torso, a short period of vasospasm does not affect the body much, and generally does not affect the safety of life, and the survival time is no different from that of a normal person. However, if the blood vessels of important organs are in spasm for a long time, such as the heart and brain, it may cause complete occlusion of the blood vessel cavity, or even the formation of vascular embolism, there is a risk of myocardial infarction, cerebral infarction, etc. The situation is more critical, and even sudden death may occur, if necessary, you need to take vasodilator drugs to treat. In normal life, pay attention to keep warm to avoid inducing vascular spasm due to cold, also need to moderate exercise, avoid smoking and alcohol, light diet, regular work and rest, and maintain a balanced mind.