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 Chart There seems to be a dearth of decent blood pressure charts on the web. I have seen a chart in the past that relates age and weight. Blood Pressure Levels Blood pressure is measured in millimeters of mercury (mm Hg). The classifications in the table below are for people who aren't taking antihypertensive NIHSeniorHealth: High Blood Pressure - Table of contents High Blood Pressure. Table of Contents. What Is High Blood Pressure? Risk Factors and Prevention · Symptoms and Diagnosis · Treating High Blood Pressure Initial Evaluation of Blood Pressure As is evident (Table 1), the blood pressure is the discriminator between the consensus categories. This requires that the measured blood pressure be highly Blood pressure Mean systolic blood pressure estimates and projections for 2002, 2005 and 2010 by sex, adults aged 15 and above, all available countries, Europe (Table) Keep Blood Pressure Chart Handy For Daily Analysis The blood pressure chart has been developed by the efforts of the International Society of Hypertension (ISH) and World Health Organization (WHO). Low blood pressure You will need to have tests on a ātilt tableā where you lie down and then have your blood pressure and heart rate measured whilst the table tilts to see Blood Pressure, A Doctor's Practical Guide With Insider's Tips To read about it click here How To Take Blood Pressure Booklet or click on the appropriate Navigation bar or the table of contents entries below. Blood Pressure Chart - Normal Blood Pressure Range Normal blood pressure range chart, using a blood pressure monitor. The K-Zone: Biophysical data tables: blood pressure This table gives the normal range -- that is, the range into which measurements on about 95% of adults fall -- of arterial blood pressure in healthy Blood Pressure Tables for Children and Adolescents, NHLBI Image of table linked to the PDF file The updated blood pressure (BP) tables for children and adolescents are based on recently revised child height |
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