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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A Special Message for Women As a woman grows older, her chance of having high blood pressure becomes greater than a man's. You may have had normal blood pressure most of your life, Blood pressure may predict recurrent cardiovascular events in women Normal blood pressure is defined as SBP below 120 mm Hg and DBP below 80 mm Hg. in our cohort of women systolic blood pressure proved to be the stronger Controlling High Blood Pressure: A Woman's Guide Information about women and high blood pressure. those with a family history of high blood pressure, and those with a high-normal blood pressure. What is blood pressure? pressure and hypertension facts. Learn what is considered a normal blood pressure reading. High Blood Pressure Isn't Well Controlled in Older Women. Women and Blood Pressure Women with pre-existing, or chronic, high blood pressure are more likely to have certain complications during pregnancy than those with normal blood MedlinePlus: High Blood Pressure 120/80 or lower is normal blood pressure; 140/90 or higher is high blood pressure . About High Blood Pressure: A Special Message for Women(American Heart Blood Pressure - High - Low - Information Some women experience high blood pressure because of the contraceptive High blood pressure can also occur during pregnancy and usually returns to normal Guide to Lowering High Blood Pressure: Issues for Women Inhibitors, Normal Blood, Pressure, Optimal Blood, Pressure, Oral Contraceptives Learn more about conditions that can increase blood pressure in women. Women With High Or Increasing Blood Pressure Are Up To Three Times The researchers divided the women into four groups: those with optimal blood pressure (BP), below 120 mmHg systolic, 75 mmHg diastolic; those with normal BP High Blood Pressure - What it means and what you can do about it Blood Pressure. Optimal. Normal. High Normal. Hypertension. Systolic have a greater chance of developing high blood pressure than women until age 55. Women's Health Advisor 2005.4: Blood Pressure If you are a woman, do not have more than 1 drink of alcohol a day. If your blood pressure is normal, check it once a year. If it's above normal, |
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