Blood pressure is basically the pressure that is put in by the blood that is perpendicular to the walls of the blood vessels. Blood pressure refers to universal major blood pressure, i.e., the force in the big arteries delivering blood to corpse parts other than the lungs, for example the brachial artery (in the arm). . Blood pressure principles are generally affirmed in millimetres of mercury (mmHg). Healthy adult human are around 120 mmHg systolic and 80 mmHg diastolic. However this figure may fluctuate because of stress, nutritional factors, drugs, or disease. Normal ranges for blood pressure in fully developed humans are: Systolic: Less than 120 mmHg (2.32 psi or 15 kPa), Diastolic: Less than 80 mmHg (1.55 psi or 10 kPa).
Less than 120/80 cannot be normal. Last week my B.P. Was 57/36 after taking Lisinopril 20MG. Now that is less than120/80 and I don't think that you can call that normal. They say 140/90 is high, but won't say what low B.P. Is. So what is normal? There should be a range so dumb people like me don't just sit here and not getting help.