High blood pressure What is high blood pressure? High blood pressure, if left untreated, can increase your risk of serious problems such as heart attack and stroke Causes of high blood pressure The causes of high blood pressure are not clear, but your lifestyle may increase your risk. Blood pressure checks Find out where you can get your blood pressure checked and how it's measured. What you can do to take care of yourself Things you can do to help you manage your blood pressure and bring it to or keep it at a healthier level. High blood pressure support and advice Support and advice to help you self-care and manage your high blood pressure.