Before you decide to keep track of your blood pressure, it's essential to know the different numbers and what they mean. Blood pressure is presented as two numbers: systolic and diastolic. These two numbers will typically indicate whether or not your blood pressure is at a healthy level. Generally, numbers equal or less than 120 systolic and 80 diastolic are considered normal. As these numbers increase, your risk for problems like heart attack or stroke is increased. Additionally, blood pressures lower than 90/60 warrant seeing your physician or health care provider.