Your blood pressure changes a little throughout the day when you relax, your blood pressure lowers, and when you move around or feel stress, your blood pressure increases. Your blood pressure reading is a measurement of the pressure your blood applies across your artery walls. The ideal blood pressure ranges between 90/60 mmHg to 120/80 mmHg. During this time, the heart fills with blood and oxygen.Įxample: If the blood pressure is 120 over 80 or 120/80 mmHg, it means you have a systolic pressure of 120 mmHg and a diastolic pressure of 80 mmHg. Diastolic Pressure: Diastolic pressure is the denominator part of the blood pressure that arises in arteries between the resting period of the beats.Systolic Pressure: Systolic pressure is the numerator part of the blood pressure or medically speaking it is the pressure that is produced when the heart pushes out blood from arteries to the full body.It is measured in millimetre of mercury and has two parts. The pressure exerted by the blood on the walls of the artery is termed as blood pressure.