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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High Blood Pressure | Blood Pressure Causes | Normal Blood Pressure Blood pressure of less than 120 over 80 is considered a normal reading for people 18 and over. A borderline high systolic pressure of 120 to 139 or a All about high blood pressure A good guide for blood pressure readings are; Normal blood pressure is less than 120/80 High normal blood pressure is between 120/80 and 140/90. Blood Pressure Explained General use of blood pressure readings was made possible by the development of so-called 'indirect techniques', particularly an inflatable cuff like the Blood pressure: A chart explaining your blood pressure reading Current guidelines identify normal blood pressure as lower than 120/80 â” many experts think 115/75 is optimal. Higher readings indicate increasingly serious Low blood pressure (hypotension): Causes - MayoClinic.com High blood pressure, or hypertension, means that the systolic or diastolic pressure or both are above the normal range. A reading above 140/90 mmHg is Blood pressure - Wikipedia, the free encyclopedia Have you checked your blood pressure reading? Any distortion of your normal blood pressure levels could be fatal for youâ¦Get your BP checked today! Blood Pressure Guide Those with a blood pressure reading anywhere from 120/80 up to 139/89 (once thought to be normal) are now classified within a category called High Blood Pressure (Hypertension) - Texas Heart Institute Heart Those with high-normal blood pressure should have it rechecked in one year. But if your blood pressure reading is above normal, you need to return for one Is Your Blood Pressure Too High? What does my blood pressure reading mean? Normal blood pressure is 120/80 or lower. High blood pressure is 140/90 or higher. If your blood pressure is Blood Pressure Monitoring at Home -- familydoctor.org Blood pressure readings fall into four general categories, ranging from normal to stage 2 hypertension (high blood pressure). The level of your blood What Is Normal Blood Pressure? A blood pressure reading below 120/80 mmHg is considered normal. In general, lower is better. However, very low blood pressure can sometimes be a cause for What Is High Blood Pressure? Blood Pressure Level (mmHg). Category, Systolic, Diastolic. Normal, < 120, and, < 80. Prehypertension, 120-139, or, 80-89. High Blood Pressure Categories for Blood Pressure Levels in Adults: Guide to Lowering HBP What is Normal Blood Pressure? Buy and use a blood pressure monitor. Compare your BP reading with the numbers on the chart above. Blood Pressure Chart - Normal Blood Pressure Range If your blood pressure is on the high side of 'normal' (between 130/85 and 139/89 mmHg) or if you have had a previous high reading at anytime before, Measuring Blood Pressure, what the numbers mean. Until recently, normal blood pressure was considered to be the average blood pressure of the population, ie, in the UK the average adult blood pressure is Low blood pressure Blood pressure of less than 140 over 90 is considered a normal reading for adults. A systolic pressure of 130 to 139 or a diastolic pressure of 85 to 89 Translating Blood Pressure Numbers What was classified as normal or high-normal blood pressure (a systolic pressure You don't want to put off doing something until your reading is 140/90, Blood pressure normal? Maybe now it isnâ™t. 1.2 Invasive measurement; 1.3 Home monitoring; 1.4 Taking accurate home blood pressure readings. 2 Normal Values; 3 Physiology. 3.1 Regulation |
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