Blood Pressure Readings What They Mean. This is the time when the heart fills with blood and gets oxygen. This refers to the pressure created when the heart beats, pumping blood through the arteries to get to the rest of your body (i.e.

If you measure it in the comfort of your own home, where you’re likely to be more relaxed, the limit is slightly lower at 135/85. Where the heart empties blood). More than 90 over 60 (90/60) and less than 120.