Effective control of hypertension will prevent comorbidities. According to expert calculations, a 10 mmHg reduction in systolic blood pressure can reduce stroke by 56% and coronary heart disease by 37%, and can prevent heart failure and kidney failure due to long-term hypertension. What is the prevalence of hypertension in China? According to epidemiological hypertension surveys and expert projections, about 100 million people in China suffer from hypertension. In a recent census in some areas, the prevalence of hypertension is about 14%; however, less than 40% of patients know they have hypertension; and less than 20% are able to use medication; and less than 5% have achieved the goal of controlling hypertension. In other words, many hypertensive patients are still unaware that they have hypertension and are still not receiving effective treatment.