Blood pressure generally decreases in hot weather.
High temperatures cause the capillaries around the skin to dilate, and there is a large amount of blood stagnation in the volume vessels, leading to a decrease in the effective vascular volume, which in turn leads to a decrease in blood pressure. In addition, hot weather will cause sweat glands to sweat a lot, so that the body heat is discharged, at the same time will also be discharged more water and sodium chloride, although to a certain extent to ease the load on the kidneys, but also promotes a further decline in blood volume, resulting in a corresponding drop in blood pressure. In addition, low blood pressure in hot weather may also be a general symptom of heat stroke, and the patient should be moved to a cool place to cool down in time. If it is caused by anemia symptoms, usually due to oral blood tonic drugs to regulate.
When blood pressure decreases in hot weather, both normal people and hypertensive patients should supplement water in time to ensure normal circulation of blood. If there is an emergency, you should go to the hospital in time.