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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Blood Pressure Health Information Exchange » What is Average Blood An average blood pressure will indicate that your cardiovascular system is low blood pressure, Site Partners, high blood pressure, Blood Pressure by Ron Changes in average blood pressure and incidence of high blood At resurvey the average systolic blood pressure had increased for seven of eight sex-city-setting cohorts (all but Guangzhou urban men). Average blood pressure levels on rise among American children Health,P The new blood pressure trends study in JAMA involved 5582 child In 1988-94 the children's average systolic blood pressure was 104. Average blood pressure levels on rise among American children The obesity-related rise in blood pressure among American childre The increases found by the JAMA study in children's average blood. Blood Pressure Diagnosis of high or low blood pressure is not made based on one day's . 1/2 The Average (Low), 3.4, 3.3. Average (Normal), 5.0, 4.4. 2 Times The Average All about low blood pressure Low blood pressure, or hypotension, generally refers to a blood pressure reading below an average of about 120/80 mmHg. However, it is often of little Low Blood Pressure Information about low blood pressure and how to measure blood pressure On average, you will live longer than people with higher blood pressures. Blood Pressure After systole, the ventricles relax (diastole), arterial pressure declines and the heart refills with blood. The lowest pressure reached during ventricular Digg - Average blood pressure Details Average blood pressure News and Information about Average. Medindia.net - Blood Pressure charts Itâ™sa means just to alert you whether your blood pressure level is on par with your age. Average Blood Pressure For young people â“ 120/80 mmHg blood pressure Average diastolic blood pressure, Average systolic blood pressure. less than 120, 120â“139, 140â“159, 160 and higher. less than 80, normal, prehypertension Blood pressure measurement Average daytime ABPM blood pressure is lower than equivalent blood when symptoms suggest the possibility of low blood pressure due to over-treatment What is Average Blood Pressure and When should you Worry? | Health An average blood pressure will indicate that your cardiovascular system is functioning properly and that your many blood vessels throughout your body are Low blood pressure Most people with low blood pressure are extremely lucky because on average they are going to live longer and need to take out a good pension policy! Blood Pressure Chart - Normal Blood Pressure Range What is important is your AVERAGE BP, or MAP (Mean Arterial Pressure) over time. . I can produce a very high, or very low blood pressure AT WILL, Blood pressure - Wikipedia, the free encyclopedia The average pressure throughout the cardiac cycle is reported as mean arterial pressure; .. Blood pressure that is too low is known as hypotension. A Low Blood Pressure Target Prevented Kidney Failure in Patients During the initial trial period, they achieved average blood pressure levels of about 126/77 mm Hg in the low target group and 134/81 mm Hg in the usual Blood Pressure The doctor measures the maximum pressure (systolic) and the lowest pressure Although the average blood pressure reading for adults is 120/80, Average Blood Pressure Levels On Rise Among American Children And In 1988-94, the children's average systolic blood pressure was 104.6 mm Hg and their average diastolic pressure was 58.4 mm Hg. In 1999-2000, the children's |
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