With a 90 percent chance of developing hypertension during your lifetime, particularly after the ages of 55 to 65, age plays a role in your risk of high blood pressure. While getting older is something that is out of your control, making lifestyle choices that support healthy aging and low blood pressure can help reduce your risk of hypertension and better manage hypertension if you do develop it. Be sure to ask your doctor for a blood pressure reading at least every two years after the age of 18 and every year after the age of 40 (or if you are over 18 and at a high risk for hypertension).