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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immediately after awakening (before washing/dressing and taking breakfast/drink), while the body Blood pressure that is too low is known as hypotension.

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Diuretics lower blood pressure by causing the body to rid itself of excess are pregnant you should discontinue immediately and speak with your doctor.

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The study showed a decrease in blood pressure immediately following the . Home monitoring may assist in the diagnosis of high or low blood pressure.

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This type of hypotension can be life threatening if not immediately treated. Low blood pressure is commonly caused by drugs such as:

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Any person with blood pressure low enough to cause symptoms should immediately sit or lie down, with the feet up above the level of the heart.

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What are the new guidelines that lower the measurement for normal blood pressure? . Call a doctor immediately if you have high blood pressure and:

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Wait a Few Minutes: Blood Pressure Readings Lower when Patients Slow Down and immediately get their blood pressure measured,Á« Turner said.

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Blood pressures fluctuate during waking hours, and are lower as we sleep. physical activity Blood pressure is usually higher during and immediately after

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Lifestyle modifications may help lower blood pressure. In hypertensive emergencies, require blood pressure to be reduced immediately to prevent or limit

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Don't measure your blood pressure immediately after you wake in the morning. Your blood pressure at home is usually slightly lower than it is in a


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