Blood pressure is generally higher in the winter than in the summer, because in the winter the cold weather constricts the blood vessels and blood pressure rises further. This is why some patients with hypertension need to reduce their blood pressure medication in the summer. In addition to the climate itself, which can trigger a further increase or decrease in blood pressure, emotions and the patient’s daily diet, whether it is high in salt or not, as well as weight and age, are all objective factors that can affect the patient’s blood pressure. Therefore, patients with hypertension should keep their mood happy, eat a low-salt, low-fat diet, work and rest regularly, avoid straining and staying up all night, quit smoking and drinking, and exercise to lose weight so that they can better control their blood pressure, and it is recommended that patients with hypertension minimize outdoor activities in winter.