What are the causes of low or high blood pressure? What are the symptoms?

For patients with high blood pressure, when they measure their blood pressure, they may find that the measurement results show that the diastolic blood pressure is high. So, what is going on?

Causes of low or high blood pressure:

Systemic arterial blood pressure is referred to as blood pressure for short. Blood pressure is the pressure exerted on the blood vessel wall when blood flows in the blood vessel. It is the driving force that pushes blood to flow in the blood vessel.

The normal blood pressure level of a healthy adult should be less than 120/80 mmHg. When the systolic blood pressure (high blood pressure) is greater than 140 mmHg for three times in a resting (quiet) state, or the diastolic blood pressure (low blood pressure) is greater than 90 mmHg on three different days, it is confirmed to be hypertension. High blood pressure means that the diastolic blood pressure is higher than 90 mmHg, and the pulse pressure difference between systolic and diastolic blood pressure is less than 30.

The reason for high blood pressure and low blood pressure mainly depends on the size of peripheral vascular resistance. As vascular resistance increases, diastolic blood pressure increases. People who are overweight and obese, have a high-salt diet, and drink excessively are prone to hypertension. Controlling weight, limiting salt and alcohol are effective measures to prevent and treat hypertension. Mental tension, anger, worry, and adverse environmental stimulation can all lead to increased blood pressure.

The main reason for high blood pressure and low blood pressure is an unhealthy lifestyle. Therefore, if you want to have a healthy body, it is very important to maintain a healthy lifestyle. A healthy lifestyle such as a reasonable diet, appropriate restriction of sodium and fat intake, increased intake of vegetables and fruits; no smoking; insisting on moderate physical activity; drinking in moderation; maintaining a normal weight, overweight and obese people should lose weight; psychological balance, etc. are very beneficial for the prevention and auxiliary treatment of high blood pressure.

Symptoms of low or high blood pressure:

1. Hypertensive heart disease: electrocardiogram shows left ventricular hypertrophy, leftward deviation of the electrical axis, S-T segment changes, and urine tests show protein and red blood cells. If it is not controlled, it may eventually lead to life-threatening cardiac hypertrophy, arrhythmia, and heart failure.

2. Cerebrovascular disease. According to statistics from the World Health Organization, more than 90% of cerebral hemorrhages are the direct consequence of high blood pressure, and cerebral thrombosis is also mostly related to high blood pressure.

3. Renal failure. Long-term high blood pressure damages the kidneys, causing the glomeruli to gradually atrophy and the kidney function to gradually decline, eventually developing into uremia, threatening the patient's life.

4. High blood pressure in the elderly can also cause diabetes, deafness, dementia, impotence, etc.

5. Aortic splinter hematoma. Also called aortic splinter aneurysm. The patient will first feel chest pain, sometimes severe pain like tearing. Emergency medicines such as nitroglycerin are ineffective and the patient should be hospitalized immediately for treatment.