I would like to remind those patients with hypertension that when the weather turns cold, they need to monitor their blood pressure every day, pay attention to the condition of their blood pressure, add antihypertensive drugs in time, and keep themselves warm with extra clothes in time. The reasons are as follows: when the weather turns cold, the peripheral blood vessels of the whole body are relatively constricted, and the blood pressure can be higher than usual, if there is emotional excitement, mental abnormality, and excessive excitement at this time, these stimulating factors may cause an increase in blood pressure, especially in older patients with poor vascular elasticity, and cerebral hemorrhage is more likely to occur. Of course, there are other reasons, but I think in this area, it is completely avoidable, and the elderly should pay special attention.