Understanding Blood Pressure: What Does 115/70 Mean?

115 over 70 is a blood pressure reading that indicates normal blood pressure. The first number, 115, is the systolic blood pressure, which is the pressure in the arteries when the heart beats. The second number, 70, is the diastolic blood pressure, which is the pressure in the arteries when the heart rests between beats. Normal blood pressure is considered to be less than 120/80 mmHg.