Low pressure is not high, high pressure can be seen in normal people, but also may be senile hypertension, such people should consult a doctor in a timely manner, clear cause of the general treatment, drug therapy, and so on. 1. Physiological situation: Older people will have arteriosclerosis as they grow older, at this time, low pressure is not high, but high pressure increases, if the high pressure is less than 140mmHg, it is a normal phenomenon, you should maintain a regular work and rest, and do more exercise, generally no need for drug treatment. 2. Elderly hypertension: occurring in people aged 65 and above, characterized by increased systolic blood pressure in the arteries, diastolic blood pressure can be unchanged or decreased, the patient will have dizziness, headache, tinnitus, memory loss and other symptoms, you can use nifedipine, hydrochlorothiazide and other drugs under the guidance of the doctor for treatment. When the low pressure is not high and the high pressure is high, it is necessary to actively consult the doctor to clarify the cause of the disease and then carry out targeted treatment.