Hypotension generally refers to blood pressure below 90/60 mm Hg, but in patients with hypertension, especially those who have developed cardiac, cerebral, and renal complications, clinical symptoms associated with low blood pressure can occur before the blood pressure reaches this level. While high blood pressure is harmful, low blood pressure can also have adverse effects on the body. Hypotension is most common in growing adolescents, the frail, and the elderly, and its dangers and principles of management vary from person to person: 1. Patients with hypertension receiving medication Patients with hypertension who develop symptoms of low blood pressure or suspected hypotension (dizziness, headache, blackness, syncope, etc.) while receiving antihypertensive medication should promptly seek medical advice to adjust their treatment plan and reduce the type of medication or Decrease the dose of medication as appropriate. If you already have coronary artery disease, you should pay more attention to the problem of low blood pressure because diastolic blood pressure below 60 mmHg may reduce the blood supply to the heart muscle and adversely affect the patient. You should consult your doctor promptly when you encounter this situation. 2, postural hypotension In the event of a change in position, such as squatting and standing, or standing for a long time due to insufficient blood supply to the head, symptoms of blackness and dizziness may occur. There are two main reasons for this type of hypotension: first, most elderly people have atherosclerotic lesions, resulting in a decrease in the body’s ability to regulate blood pressure; second, some elderly hypertensive patients are caused by improper use of antihypertensive drugs. Elderly people suffering from postural hypotension are prone to sudden falls and fractures, or even accidental death. Severe hypotension can also increase the risk of cerebral infarction and myocardial ischemia. 3, weakness caused by hypotension Weakness, adolescents, lack of exercise and women have a higher chance of hypotension, some do not have any symptoms, some may appear dizziness, weakness, shortness of breath, mental discomfort, easy fatigue, etc.. Some girls, in order to slim down, excessive dieting or diet structure is not reasonable, resulting in insufficient supply of nutrients in the body, resulting in symptoms of hypotension. 4, postprandial hypotension Some people (especially the elderly) often have symptoms such as dizziness, weakness, sleepiness, blackness, angina, and even fainting and falling after meals, and should be alert to the presence of postprandial hypotension when they encounter this situation. To clarify this issue, blood pressure can be measured before, immediately after, half an hour and one hour after a meal. If the postprandial blood pressure is significantly lower and the systolic blood pressure is more than 20 mmHg lower than before the meal, then postprandial hypotension can be diagnosed. In this case, you should go to the hospital promptly. 5.Seasonal hypotension is more common in the hot summer, due to excessive sweating resulting in reduced blood volume, coupled with vasodilation and will appear lower blood pressure, the patient may have temporary headache, dizziness, chest tightness, shortness of breath and other symptoms. 6.How to deal with it? For people without cardiovascular disease (especially adolescents), hypotension generally does not require drug treatment, and prevention is important. The first step is to strengthen exercise and physical fitness. Daily physical exercise is an effective measure to prevent and treat hypotension. For the elderly, you can choose some less intense exercise, such as walking, cycling, swimming, tai chi, square dance, etc.; secondly, we should eat reasonably and strengthen nutrition. The second thing is to eat a reasonable diet and strengthen nutrition. In life, we should match meals reasonably and not eat in a partial way to ensure the intake of comprehensive and sufficient nutrients. People with low blood pressure should pay attention to drinking more water, replenishing blood volume and eating more food with high salt content to prevent excessive drop in blood pressure. People with low blood pressure should avoid standing for a long time in a stuffy environment. The elderly should pay special attention to the prevention of postural hypotension. Patients with hypertension must take antihypertensive drugs under the guidance of a doctor and not change the type and dose of antihypertensive drugs at will; usually pay attention to the speed when changing positions, for example, do not get up too quickly when getting up or rising from a sitting position. For postprandial hypotension, you can try measures such as drinking the right amount of water before meals, not drinking alcohol during meals, taking proper rest after meals, and eating less and more meals. If the symptoms are not relieved for a long time, you should go to the hospital for timely treatment.