The life expectancy of 65-year-old patients with cerebral infarction ranges from hours to decades, with large individual differences depending on the severity of the patient’s cerebral infarction, medical intervention, and underlying physical status. 1. Severity of cerebral infarction: patients with large cerebral infarction or infarction in important parts of the brain, such as brainstem infarction, may die within hours due to malignant cerebral edema, cerebral herniation, and central respiratory and circulatory failure, while patients with small cerebral infarction may survive for several years to several decades. 2. Medical intervention: Early intravenous thrombolysis and arterial thrombolysis can significantly improve the prognosis of patients, reduce mortality, prolong life expectancy, or even do not affect life expectancy; while those who do not undergo the above treatments may have a poor prognosis or leave serious sequelae, and may subsequently die of pneumonia, pressure ulcers, deep vein thrombosis and other complications, with life expectancy ranging from a few months to a few years. 3. Basic physical status: long-term smoking and alcohol abuse, combined with a variety of diseases (such as diabetes mellitus, hypertension, renal disease, coronary artery disease, chronic lung disease, etc.) the prognosis is worse, the survival period can also be affected, and may survive for several years. Patients should seek timely medical attention if they are not adapting to the disease, and early standardized treatment under the guidance of a physician to prolong their life as much as possible.