ADVERTISEMENT Intensive efforts to bring down high blood pressure can lower the risk of heart attack and stroke, a new study has found. High blood pressure, also known as hypertension, is a common health issue affecting an estimated 1.28 billion adults ages 30 to 79 worldwide. Left untreated, high blood pressure can cause heart disease, stroke, and kidney disease. Doctors often advise hypertension patients to take medication and make lifestyle changes, such as regular exercise and a healthy