A blood pressure of 150 and a low pressure of 115 means that it belongs to the third level of hypertension, which is more serious. Grade 3 hypertension mainly refers to systolic blood pressure ≥180mmHg and diastolic blood pressure ≥110mmHg. If the low blood pressure is 115mmHg and the high blood pressure reaches 150mmHg, that is to say, there is grade 3 hypertension, grade 3 hypertension is the most serious manifestation of high blood pressure, which may be due to the family genetic inheritance, old age, poor lifestyle and long-term use of hormone drugs. The diagnosis of hypertension often requires two blood pressure measurements on different days to be considered as hypertension, but if you are in grade 3 hypertension, you will need to use medication for a long period of time. You can choose calcium channel blockers, such as nifedipine, or angiotensin-converting enzyme inhibitors, such as enalapril, and you can use angiotensin receptor antagonists, such as valacyclovir, as a complementary medicine. Tertiary hypertension through life intervention is generally difficult to reduce blood pressure to normal values, but life intervention can effectively control hypertension, so tertiary hypertension in taking drug therapy at the same time also need to improve lifestyle, to develop a low-salt, low-fat diet, and daily exercise in moderation, as well as to quit smoking, alcohol. If patients need to apply antihypertensive drug treatment, they need to be under the guidance of a doctor, and try to avoid using drugs privately.