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 considered normal or good blood pressure? | Answerbag.com What is considered normal or good blood pressure? You can read about blood pressure readings and how to treat high blood pressure on the following site. High Blood Pressure Medication Part II: Medical Treatment For High Blood Pressure If you or someone in your family is . Chart of normal blood pressure is a Ready Reckoner Blood Pressure Testing and Measurement - NYU Medical Center, NYU A blood pressure reading of less than 90 over 60 may be considered too low. A blood pressure less than 120 over 80 is considered normal. What is considered a normal blood pressure reading and what is I have visited several websites and all seem to ha WikiAnswers - What is the normal range for blood pressure on any Normal pH range for blood? What are normal blood pressure values? What is a normal range for SBP? What is normal blood pressure for a human male? Prehypertension: Early-stage High Blood Pressure- WebMD People with blood pressure levels between 120/80 and 140/90 - levels once considered normal - have twice the risk of heart disease as those with low blood Health 24 - Hypertension, Explaining Hypertension Researchers are of the opinion that normal blood pressure should not exceed 130/85 mm Hg, with the highest reading considered normal being 140/90 mm Hg. Is my blood pressure considered extremely high? - Yahoo!7 Answers Is my blood pressure considered extremely high? my normal blood pressure is 100/90.. i went to the doctor for my migraine headaches and my blood pressure A Special Message for Women What your blood pressure level means Learn your blood pressure numbers. A reading of less than 120/80 mm Hg is considered normal. A&D Medical / Lifesource / Hypertension_Answers_Q16 Although there are no absolute rules for what constitutes a normal blood pressure, 120/80 mm Hg is considered desirable for adults without hypertension. The New "Normal" Blood Pressure: What Are the Implications for The New "Normal" Blood Pressure: What Are the Implications for Family Medicine? 129 mm Hg systolic and 80 to 84 mm Hg diastolic, were considered normal. ScienceDirect - The American Journal of Medicine : Blood Pressure The designation of prehypertension, blood pressure levels usually considered normal, has raised concerns. The new category will swell the ranks of Blood pressure usually considered normal is associated with an The exposure variables were blood pressure levels: high normal blood pressure, systolic blood pressure 130-139 mm Hg or diastolic blood pressure 85-89 mm Hg What is Considered Normal Blood Pressure? Blood pressure readings less than 120/80 are considered normal. What Was Normal Blood Pressure Is Now Considered Too High (Tufts For years your blood pressure has hovered around 135/85, which your doctor always said was normal and sent you on your way. Not on your next visit. Blood pressure - Wikipedia, the free encyclopedia ScienceDirect - The American Journal of Emergency Medicine : The Normal Difference in Bilateral Indirect Blood Pressure Recordings in Normotensive What Is High 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 blood pressure? Learn what is considered a normal blood pressure reading. A blood pressure of 140/90 or higher is considered high blood pressure. Low Blood Pressure (Hypotension) Causes, Symptoms, Diagnosis, and Normal diastolic blood pressure falls between 60 and 80 mm Hg. Current guidelines Blood pressures over 130/80 are considered high. High blood pressure |
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