What is Cholesterol?Cholesterol is a sterol (a combination steroid and alcohol). Cholesterol is a lipid found in the cell membranes of all tissues, and it is transported in the blood plasma of all animals. Because cholesterol is synthesized by all eukaryotes, trace amounts of cholesterol are also found in membranes of plants and fungi.The name originates from the Greek chole- (bile) and stereos (solid), and the chemical suffix -ol for an alcohol, as researchers first identified cholesterol in solid form in gallstones by Francois Poulletier de la Salle in 1769. However, it is only in 1815 that chemist Eugene Chevreul named the compound "cholesterine".[2]Most of the cholesterol is synthesized by the body and some has dietary origin. Cholesterol is more abundant in tissues which either synthesize more or have more abundant densely-packed membranes, for example, the liver, spinal cord and brain. It plays a central role in many biochemical processes, such as the composition of cell membranes and the synthesis of steroid hormones. Cholesterol is insoluble in blood, but is transported in the circulatory system bound to one of the varieties of lipoprotein, spherical particles which have an exterior composed mainly of water-soluble proteins. The main types, low-density lipoprotein (LDL) and high-density lipoprotein (HDL) carry cholesterol from and to the liver.According to the lipid hypothesis, abnormally high cholesterol levels (hypercholesterolemia) and abnormal proportions of LDL and HDL are associated with cardiovascular disease by promoting atheroma development in arteries (atherosclerosis). This disease process leads to myocardial infarction (heart attack), stroke and peripheral vascular disease. As high LDL contributes to this process, it is termed "bad cholesterol", while high levels of HDL ("good cholesterol") offer a degree of protection. The balance can be redressed with exercise, a healthy diet, and sometimes medication. |
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What Is High Blood Pressure? Prehypertension is blood pressure between 120 and 139 for the top number, or between 80 and 89 for the bottom number. For example, blood pressure readings What Are High Blood Pressure and Prehypertension? Systolic pressure is the force of blood in the arteries as the heart beats. It is shown as the top number in a blood pressure reading. High blood pressure Blood pressure: A chart explaining your blood pressure reading Blood pressure readings are grouped into four categories. of High Blood Pressure, 2003. Numbers are expressed in millimeters of mercury (mm Hg). What do the numbers mean in a blood pressure reading? The pressure is determined by the force and amount of blood pumped and the size and flexibility of the arteries." A reading consists of two numbers, Blood Pressure Monitoring at Home -- familydoctor.org Listen carefully for the first sound. Check the blood pressure reading by looking at the pointer on the dial. This number will be your systolic pressure. High Blood Pressure (Hypertension) - Patient UK The top (first) number is the systolic pressure. This is the pressure in the A one-off blood pressure reading that is high does not mean that you have Blood Pressure The lower (diastolic) number represents the pressure when the heart relaxes A single elevated blood pressure reading doesn't mean you have high blood Translating Blood Pressure Numbers It is crucial to ÁœKnow Your NumbersÁ« with respect to Blood Pressure. A blood pressure reading equal to or greater than 140 (systolic) over 90 Blood pressure - Wikipedia, the free encyclopedia The value of home monitoring increases over time with a number of measurements For blood pressure readings taken with a home monitoring device to be What Is Normal Blood Pressure? Look at a chart of blood pressure readings to see if your blood pressure is BP Success Zone Program to help people lower their blood pressure numbers. High Blood Pressure - Things you can do to help lower yours The first number is the systolic blood pressure. This is the peak blood A blood pressure reading of more than 140 over 90 (or 160 over 90 if you are Blood Pressure Readings - What They Mean Find out how the numbers in your blood pressure readings measure your risk for heart attack and other damage. Blood Pressure Readings: Blood Pressure Machines for Measuring Blood pressure readings with CSI Model 3K blood pressure machines are an accurate, fast and non-invasive way of measuring blood pressure. Measuring Blood Pressure, what the numbers mean. The top number, which is called the systolic pressure, shows the pressure in your High blood pressure can be a systolic reading of 140 or above, MedlinePlus Medical Encyclopedia: Blood pressure Blood pressure readings are measured in millimeters of mercury (mmHg) and usually given as 2 numbers. For example, 110 over 70 (written as 110/70). Ask an Expert: Blood pressure reading Question:. I take blood pressure medication. My blood pressure reading is 132/96. My doctor does not seem concerned. Do you think this is a problem? Blood pressure - MSN Health & Fitness Blood pressure readings consist of an upper and lower number (such as 120 over 90 or 120/90). Blood pressure readings are measured in units called A useful blood pressure reading can be very effective Blood pressure reading is represented in numbers and the normal BP reads 120/80 mmHG. The numbers are measured by a blood pressure device, which measures My Blood Pressure Charting Software -- Free Download Software that records, charts and prints reports of your blood pressure readings WIN 98/ME/2000/XP |
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