In summer, blood pressure is low, can antihypertensive drugs be reduced or stopped?

Some hypertensive patients in summer often find that their blood pressure is lower than that in winter when they measure their blood pressure. Is this really possible? 01

Blood pressure changes in summer< /span>

For most hypertensive patients, In other words, blood pressure will show the fluctuation law of “high in winter and low in summer”. There are two main reasons for the decrease of blood pressure in summer. One is because the ambient temperature rises, and the human body expands blood vessels on the surface of the body in order to increase heat dissipation. The second is because the amount of sweat of the human body increases in summer. with reduced sodium ion levels. Photo source:Photo ID300018514 span>02

Withdrawal without authorization is dangerous

The blood pressure drops during the daytime in summer, and many hypertensive patients will reduce an antihypertensive drug or reduce the dose, or even stop the drug on their own. However, this move But there is a little risk. The time to measure blood pressure is usually during the day, and in summer, many people have a decrease in sleep quality at night, which affects the regulation of the neuroendocrine system and increases blood pressure at night, resulting in large changes in blood pressure during the day and night in summer, resulting in myocardial ischemia, cerebral Increased risk of stroke. Epidemiological evidence shows that air temperature is closely related to cardiovascular disease. When the temperature was above 32°C, the incidence of stroke was 66% higher than usual. 03

What to do if blood pressure drops in summer

Hypertensive patients, what should be done when blood pressure drops in summer? 1. The ideal blood pressure of the human body is 120/80mmHg. During antihypertensive treatment, the ideal blood pressure should be taken as the control target as much as possible. Moreover, lower blood pressure has a stronger protective effect on the heart, brain, kidney and other organs. Generally speaking, drug adjustment is only recommended when the high pressure is lower than 110mmHg and the low pressure is lower than 60mmHg; 2. Attention when adjusting antihypertensive drugs: The dosage of antihypertensive drugs should be reduced first, and then the types of drugs should be reduced. Read the instructions of the medicine carefully, and gradually reduce the medicines you take to the minimum therapeutic dose recommended on the instructions. 04

< span data-mpa-emphasize-underline="t">How to spend the summer safely with high blood pressure< /span>

1, the temperature difference is too big< span>If the temperature of the air conditioner is relatively low and the temperature difference between indoor and outdoor is too large, it is easy to cause sharp contraction or expansion of blood vessels when entering or leaving the door, and blood pressure fluctuations are too large, causing myocardial infarction or cerebral infarction. Suggestion: The temperature difference between indoor and outdoor should be controlled within 8℃~10℃. Or it is more appropriate to control the room temperature at about 26 ℃. Image source:Photopan> span>2. Do not exercise too early in the morningIt is early in summer, but exercising too early in the morning may bring fatal risks . human body in the morningIn a state of sympathetic excitation, blood pressure increases, heart rate increases, and blood viscosity increases, increasing the risk of disease. Suggestion: 4-10 am is the high incidence period of cardiovascular and cerebrovascular diseases. In the hot summer months, you may wish to change the exercise time to after dinner. 3. Guaranteed water intakeSummer sweats a lot, and the body water If the water is not replenished in time, the blood concentration will increase, the blood will become viscous, and it will be easy to suffer a stroke. Recommendation: In summer, the daily intake of water is generally not less than 2000 ml. Before going to bed at night and after getting up in the morning, you should also drink a glass of water. If you wake up in the middle of the night, you can also add some water to reduce blood viscosity and prevent thrombosis. 4. The diet should be light and stick to a light diet. Eating too much oil or too salty will increase blood lipids and blood pressure, which is not good for cardiovascular and cerebrovascular health. Suggestion: Eat more fresh vegetables, fruits, soy products, etc., and also eat some lean meat and fish to ensure protein intake. In short, if the blood pressure of hypertensive patients decreases in summer, remember not to stop the medication without authorization! If you need to adjust the medicine, please do it under the guidance of your doctor or pharmacist.

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Reviewed by Li Nenglian, a Chinese and Western pharmacist and deputy chief pharmacist

People’s Chronic Disease and Health Management Center

The members of the People’s Pharmacy Chronic Disease and Health Management Center, The center conducts comprehensive management of members’ health and provides “one-to-one” and “precise” health management services. Now it has spread to 22 provinces, 30+ subsidiaries, and a total of more than 5,000+ chronic disease experts.

In order to better serve chronic disease members, there are 5 chronic disease care days every week, and 7 health self-assessment items are carried out. On the care day, members can enjoy: Self-test services for blood pressure, blood lipids, blood sugar, uric acid, Helicobacter pylori, fecal occult blood, and lung function, and chronic disease experts provide one-to-one professional medication guidance and customized exercise and diet conditioning programs.

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