How long a 30-year-old hypertensive patient can live needs to be assessed according to the severity of blood pressure, whether he/she has received standardized treatment, and the effect after treatment, and cannot be generalized. 1. If hypertension is detected at the age of 30 and effectively treated, such as through diet, exercise, medication control, the treatment is very effective, then there is not much difference between their life expectancy and that of a normal person. 2. If hypertension is not effectively treated at the age of 30, and the blood pressure keeps rising, and cardiovascular and cerebrovascular diseases, renal diseases and other comorbidities such as cerebral hemorrhage, cerebral infarction, hypertensive nephropathy, etc., the life expectancy of a person may be affected, and even have adverse consequences. Therefore, once high blood pressure is detected, one should consult a doctor in time to clarify the cause of high blood pressure and give appropriate treatment in order to better control the blood pressure.