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: Heart and Blood Vessel Disorders: Merck Because high blood pressure itself has no symptoms, doctors try to avoid treatments that cause side effects or interfere with a person's lifestyle. High blood pressure - hypertension symptoms, cause, treatment and risk BUPA health factsheet - high blood pressure (hypertension) and its symptoms, in your life to avoid short-term rises in blood pressure - try relaxation High blood pressure - what is hypertension? This is something that everyone should do but is particularly important if you have high blood pressure as it may avoid the need for tablets. High blood pressure (hypertension) - causes, treatments and High Blood Pressure: Medical information about hypertension, its treatment, therapies and prevention. Hypertension - Wikipedia, the free encyclopedia Hypertension, commonly referred to as "high blood pressure" or HTN, Secondary hypertension indicates that the high blood pressure is a result of (i.e. High Blood Pressure: Things You Can Do to Help Lower Yours Information about lowering your blood pressure from the American Academy of Family Physicians. High Blood Pressure - Things you can do to help lower yours High blood pressure (hypertension) occurs when your blood moves through your arteries at a higher Avoid fat and cholesterol. Try relaxation techniques High blood pressure - information and help about hypertension Information about high blood pressure. example salt may be hidden in bread, many cereals and ready meals so avoid these high salt foods where possible. WebMD Hypertension/High Blood Pressure Center - Find high blood Find in-depth high blood pressure and hypertension information including its of blood pressure medications might help patients with kidney disease avoid Natural Remedies for High Blood Pressure Learn about natural remedies for high blood pressure, such as herbs, diet, nutrition, This kind of high blood pressure is called primary hypertension or What Is High Blood Pressure? High blood pressure is a blood pressure reading of 140/90 mmHg or higher. High Blood Pressure (Hypertension) - Symptoms, Causes, Diagnosis Consumer health resource center providing an overview of hypertension and its causes, symptoms and treatment. Your Guide to Lowering High Blood Pressure, NHLBI This site, for people who want to learn about preventing and controlling high blood pressure. Based clinical guidelines and research studies, High Blood Pressure (Hypertension) - Patient UK Having high blood pressure is one of several 'risk factors' that can Choose foods labelled 'no added salt', and avoid processed foods as much as High blood pressure: Are you at risk? - MayoClinic.com If you know what your risks are, you can make lifestyle changes to help prevent high blood pressure or delay its onset. And that means you can avoid or Q&A: How to reduce high blood pressure and restore healthy Another thing you can do, and this is generally better known, is to avoid intake of salt or sodium. Obviously high sodium intake causes high blood pressure. High Blood Pressure Many people have high blood pressure for years without knowing it. Uncontrolled high blood pressure can lead to stroke, heart attack, congestive heart Go Ask Alice!: Managing high blood pressure through diet Avoid foods high in sodium. Sodium causes vasoconstriction, the narrowing of blood Diet could be another possible way to decrease blood pressure. Control Your Risk Factors for High Blood Pressure Avoid excessive alcohol. Some studies say that drinking more than 3 to 4 ounces of 80-proof alcohol per day will raise blood pressure. A person with high |
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