Hypertension is a common condition, and patients tend to pay more attention to their blood pressure in winter, while once the spring season comes, they think the danger period is over and start to relax mentally. As a result, many hypertensive patients experience blood pressure fluctuations, and some even have cardiovascular accidents such as strokes when the climate suddenly changes. According to the survey many hypertensive patients often walk into the following three misunderstandings: 1, is to replace the blood pressure measurement with symptoms. Many hypertensive patients only believe in self-perception, such as no head weight, dizziness and other uncomfortable symptoms, they do not go for blood pressure testing. In fact, not everyone has symptoms when blood pressure is high, and even when a stroke occurs, it is not always felt. 2, is once found high blood pressure on their own experience to take drugs indiscriminately, and even arbitrarily increase the amount of drugs. 3, is to think that long-term eating a drug is not good, take the initiative to change the drug. These situations are prone to cause blood pressure out of control or blood pressure drop too low and induce stroke and other cardiovascular diseases occur. In the changing season of late spring and early summer, in addition to avoiding fatigue, living a regular life, paying attention to a balanced diet and proper exercise, hypertensive patients should pay attention to two things: First, they should measure their own blood pressure. If possible, measure it once in the morning before taking medication and once in the afternoon at 2 to 3 pm. Second, once the blood pressure is abnormal, you should ask a specialist to adjust the medication, do not arbitrarily increase or decrease. It should be especially reminded that the onset of action of long-acting antihypertensive drugs is slow, so patients who have just started taking such drugs should not be anxious, and should seek medical help if they have any problems, and should not change their medication on their own, and should also seek medical help when side effects such as headache and head swelling occur. Ninety percent of patients with hypertension are suffering from primary hypertension. Patients with hypertension need to control their diet, especially the intake of salt. Patients with hypertension should control their salt intake to 6 grams per day, and if they also take diuretic antihypertensive drugs, their blood pressure will drop by 10 to 20 mmHg. If hypertensive patients consume 20 grams of salt per day, even if they take diuretic antihypertensive drugs, their blood pressure will not be reduced. Hypertensive patients are prone to arteriosclerosis and hyperlipidemia, so in addition to a low-salt diet, hypertensive patients should also adopt a low-fat, low-cholesterol enzyme and lower-calorie diet. Obese patients should control the amount of food in order to properly reduce weight. Hypertensive patients should eat more coarse grains, but also should eat more vegetables, vegetables contain more magnesium, calcium, potassium. Fruits such as oranges and bananas are also good for lowering blood pressure.