Blood pressure is the force at which your blood is pumped. Blood pressure should be at a normal level. It should neither be high (hypertension) nor low (hypotension) Learn about what is normal blood pressure by age and what is considered as high and low blood pressure chart by age and gender. Blood pressure (BP) is the pressure of circulating blood against the walls of blood vessels. Most of this pressure results from the heart pumping blood through the circulatory system. When used without qualification, the term " blood pressure " refers to the pressure in a brachial artery, where it is most commonly measured. Blood pressure is usually expressed in terms of the systolic pressure (maximum pressure during one heartbeat) over diastolic pressure (minimum pressure between two ... Discover optimal blood pressure ranges and levels for men and women by age. Learn what’s normal, high, or low, and how to maintain a healthy BP for overall well-being.