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 millimeters 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.
Heart disease is the UK’s biggest killer, claiming thousands of lives each year. Heart failure is when your heart cannot pump blood around the body as well as it should, and this can cause you to become short of breath and can cause your ankles to swell. Heart attack High blood pressure is a major risk factor for heart attacks.
Various disorders and drugs can cause the compensatory mechanisms to malfunction, and high blood pressure may result. Causes In most instances of high blood pressure, no known cause can be identified. Doctors do not know what causes high blood pressure in 90 to 95 percent of people who have it. For some people, just being in a medical setting causes their blood pressure to rise.
When blood pressure is too low, the first organ to malfunction is usually the brain. Symptoms that may occur include: Confusion
- Chest pain
- Ear noise or buzzing
- Irregular heartbeat
- Vision changes
Article Credits: Ideacopy
Author Credits: Alexis-Blaise Kenne
Image Credits: Pexels