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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How to Check Your Blood Pressure With a Sphygmomanometer - wikiHow
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wikiHow article about How to Check Your Blood Pressure With a Sphygmomanometer.

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This measurement is important if you are using a home electronic device to check your blood pressure. Please remember to put on the cuff properly and if

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Check Your High Blood Pressure Prevention I.Q.. Test your knowledge of high blood pressure with the following questions. The answers are given at the end of

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Blood Pressure Check · Effects of Age on Blood Pressure Effects of Age on Blood Pressure;   The top number is the systolic blood pressure reading.

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Blood pressure devices from CSI are high-end blood pressure testers that provide a fast, accurate and complete blood pressure check.

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Identification of systolic blood pressure by palpatory method helps one to avoid a lower systolic reading by auscultatory method if there is an auscultatory

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Blood pressure check · Blood pressure check The bottom number is the diastolic blood pressure reading. It represents the pressure in the arteries when

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Learn how blood pressure is taken and how often to have it checked.

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Listen carefully for the first sound. Check the blood pressure reading by looking at the pointer on the dial. This number will be your systolic pressure.

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Information about lowering your blood pressure from the American Academy of Check food labels for sodium. While some foods obviously have a lot of

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Therefore, everyone should have regular blood pressure checks at least every 3-5 years. The check should be more often (at least once a year) in: older

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When you first start measuring your blood pressure at home, you will probably check it twice a day, morning and evening. This may go down to once a day and

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Blood pressure check. Blood pressure check. To measure blood pressure, your doctor uses an instrument call a "sphygmomanometer," more often referred to as a

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A home blood pressure test allows you to keep track of your blood pressure at home. Blood pressure is a measure of the force of blood inside an artery.

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If your blood pressure is â˜normalâ™ and you have no personal or family history of high blood pressure, a check every two years and during routine visits to

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That's especially true for the nation's top health problems â” high blood pressure, diabetes and high cholesterol â” that require ongoing care even when the

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Your doctor or another qualified health professional should check it at least once every two years and more often if it's high. Blood pressure is measured


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