The normal value of blood pressure at the age of 55, should be around 120/80mmHg, i.e. high pressure between 90-139mmHg and low pressure between 60-89mmHg if the blood pressure is too low. High pressure below 90mmHg can be diagnosed as hypotension, with severe cases of hypotensive shock, commonly seen in blood pressure below 80/60mmHg. Hypertension can be diagnosed if the blood pressure is too high, above 140/90mmHg. A general diagnosis of hypertensive disorders requires measurement of blood pressure values over the same time period for 2-3 days, and if all are higher than normal then the blood pressure is hypertensive. As atherosclerosis increases with age, it is important to pay attention to a low salt and low fat diet in general. If your blood pressure is high, you must take antihypertensive drugs such as nifedipine tablets, amlodipine besylate, valsartan capsules, and nifedipine in a timely manner.