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).
