摘要
Hypertension has become the primary risk factor for cardiovascular disease in China and one of the most critical causes of death from diseases worldwide[1-2].In China,as many as 50%of cardiovascular disease,chronic kidney disease,and diabetes patients die of hypertension[3].Especially in the cold regions of north China,blood pressure demonstrates characteristic seasonal and regional fluctuations[3].The incidence rate of refractory hypertension,myocardial infarction,heart failure,atrial fibrillation and sudden cardiac death in cold season is significantly increased,while cold as a health killer is often neglected[4].On the eve of the 13th World Hypertension Day,Professor Tian,Head of Heilongjiang Province Cardiovascular and Cerebrovascular Disease Prevention and Treatment Office and Director of Cardiology of the First Affiliated Hospital of Harbin Medical University,gave a special report on the characteristics of hypertension in the northern cold region and uncovered four major influencing factors of cardiovascular disease.