hi your blood pressure rises with each heartbeat and falls when your heart relaxes between beats. while bp can change from minute to minute with changes in posture exercise stress or sleep it should normally be less than 120/80 mm hg (less than 120 systolic and less than 80 diastolic) for an adult age 20 or over. good luck
what is normal blood pressure. i started on an exercise program about three months ago. i am on high bp meds. now i notice my bp is usually 115/56-66. i also feel really uncomfortable and dizzy when i stand up. is it too low now? used to be 130-140/75-85.