High blood pressure information
Blood pressure is the force of the blood pushing against the walls of the arteries. Blood pressure is the result of two forces: from the heart as it pumps blood into the arteries and throughout the circulatory system, and the force of the arteries as they resist blood flow. Blood pressure is measured by putting a blood pressure cuff around your arm, inflating the cuff and listening for the flow of blood. Blood pressure is always given as these two numbers, the systolic and diastolic pressures. Blood pressure is traditionally measured with a device called a sphygmomanometer. Blood pressure is measured in millimetres of mercury (mm Hg). Blood pressure is generally felt to be abnormally high at a level of 140/90, and some sort of definitive therapy and follow-up should be started at this level. High blood pressure is called the silent killer because it usually has no symptoms.
Blood is carried from the heart to all parts of your body in vessels called arteries. Blood does not flow regularly like water from a tap:-When the heart contracts (systole), the blood is propelled into the main arteries that act as a pressurised reservoir.
Pressure in a hose can be regulated either by controlling the rate at which fluid passes through it or by widening it. Pressure inside your arteries can cause the muscles that line the walls of the arteries to thicken. Your blood pressure is at its highest when the heart beats, pumping the blood. When the heart is at rest, between beats, your blood pressure falls. Still, for most of your waking hours, your blood pressure stays pretty much the same when you are sitting or standing still.
Blood pressure is the force of the blood pushing against the walls of the arteries. Blood pressure is the result of two forces: from the heart as it pumps blood into the arteries and throughout the circulatory system, and the force of the arteries as they resist blood flow. Blood pressure is measured by putting a blood pressure cuff around your arm, inflating the cuff and listening for the flow of blood. Blood pressure is always given as these two numbers, the systolic and diastolic pressures. Blood pressure is traditionally measured with a device called a sphygmomanometer. Blood pressure is measured in millimetres of mercury (mm Hg). Blood pressure is generally felt to be abnormally high at a level of 140/90, and some sort of definitive therapy and follow-up should be started at this level. High blood pressure is called the silent killer because it usually has no symptoms.
Blood is carried from the heart to all parts of your body in vessels called arteries. Blood does not flow regularly like water from a tap:-When the heart contracts (systole), the blood is propelled into the main arteries that act as a pressurised reservoir.
Pressure in a hose can be regulated either by controlling the rate at which fluid passes through it or by widening it. Pressure inside your arteries can cause the muscles that line the walls of the arteries to thicken. Your blood pressure is at its highest when the heart beats, pumping the blood. When the heart is at rest, between beats, your blood pressure falls. Still, for most of your waking hours, your blood pressure stays pretty much the same when you are sitting or standing still.
