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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MedlinePlus Medical Encyclopedia: Blood pressure (blood pressure reading pulse)
The bottom number is the diastolic blood pressure reading. to perform a blood pressure measurement is a cuff and a device for detecting the pulse in the

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The bottom number is the diastolic blood pressure reading. It represents the pressure in the arteries when the heart is at rest.

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Blood pressure of less than 140 over 90 is considered a normal reading for adults. A systolic pressure of 130 to 139 or a diastolic pressure of 85 to 89

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Understanding the Meaning of Laboratory Tests . New research indicates that the top number in a blood pressure reading is more useful than the bottom

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Exercise can lower blood pressure) raise the pulseNeck pulse . Extrinsic influences on arteriole tone maintain mean arterialArterial embolism

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What Is The Meaning Of The Numbers In A Blood Pressure Reading? - Science Fact Finder.

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Blood pressure-lowering drugs can help control blood pressure when diet it is important that you do not stop taking them without consulting your doctor.

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This site, for people who want to learn about preventing and controlling high blood pressure. Based clinical guidelines and research studies,

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High Blood Pressure: Medical information about hypertension, its treatment, High blood pressure - on eMedicineHealth; Read what your doctor is reading:

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It is shown as the top number in a blood pressure reading. High blood pressure is 140 and higher for systolic pressure. Diastolic pressure does not need to

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Both high fiber levels and low fat intake, emphasizing unsaturated fats, have been shown to have benefits in lowering blood pressure.

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Medication Fitness: Tips for Remembering to Take Your Pills · Does It Matter Which Class of Drug Is Used To Lower Blood Pressure?

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Medications used to treat high blood pressure are called antihypertensive agents. Diuretics, beta blockers, calcium channel blockers, vasodilators,

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Restricting sodium intake to lower blood pressure appears to work better if accompanied by These herbs are often used to treat hypertension; however,

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Target Taurine: This amino acid--available in protein and as a supplement--balances sodium and potassium in the blood, lowering blood pressure.

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Researchers compared the blood pressure-lowering effects of cocoa and tea in previously published studies and found eating cocoa-rich foods was associated

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Learn how to lower your blood pressure and have a healthy heart. Diet, alcohol intake and blood pressure in middle-aged women. Watch Those Portions!

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Lowering blood pressure tactics, using a blood pressure wrist monitor. Lowering High BP Diet Foods to lower blood pressure

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US researchers believe that the device, if found effective, would offer a way to lower blood pressure in patients who have not been able to control their

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Lowering Blood Pressure. What is high blood pressure? What do the numbers mean? How is high blood pressure diagnosed? How often should I have my blood

Top Blood Pressure Number Key For Gauging Heart Disease Risk 3/30/02 (blood pressure lower number)
The top number in a blood pressure reading is the best way to determine a man's But many doctors continue to treat patients based on the lower number,

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If you want to lower your blood pressure by natural means, here you will find useful information to treat your blood pressure naturally.

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Information about lowering your blood pressure from the American Academy of Family Physicians.

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Learn about low blood pressure, also known as hypotension. It can also be influenced by genetic make-up, aging, medication, dietary and psychological

MedlinePlus Medical Encyclopedia: Blood pressure (blood pressure low readings)
Consult your provider if your blood pressure measurements are consistently high or low or if you have symptoms at the same time as the high or low reading.

Vital Signs (Body Temperature, Pulse Rate, Respiration Rate, Blood  (blood pressure low pulse rate)
body temperature; pulse rate; respiration rate (rate of breathing); blood pressure (Blood pressure is not considered a vital sign, but is often measured

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Sudden drop in pressure or further drop in pressure in low pressure patients can make them collapse, thus endangering life. Low diastolic blood pressure

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Record, Track, and Chart your blood pressure readings online with our free journal.

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Digital blood pressure monitors, wrist blood pressure monitors and manual Four week blood pressure logbook included; Extra large digital display

Palm OS Medical Software. Blood Pressure Log 1.1 for Palm OS (blood pressure log software)
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Blood Pressure Log Sheet. Categories: Personal |. Chakra-colored weekly log sheet to track bp, pulse, temperature, mood, etc. on b.i.d. basis.

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It was decided to define low blood pressure as the lowest 5 per cent of all the blood pressure readings. This gave levels of 115/70 mm Hg for daytime

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Systolic and diastolic blood pressure levels for children and teenagers have risen substantially since 1988, according to a new study supported by the

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Systolic and diastolic blood pressure levels for children and teenagers have risen substantially since 1988, according to a new study supported by the

Blood Pressure Level and Outcomes in Adults Aged 65 and Older with  (blood pressure levels by age)
Age 70. Age 80. Figure 3. Poststroke systolic blood pressure (SBP) level and outcomes for older adults with ischemic stroke: interaction with age.

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Record, Track, and Chart your blood pressure readings online with our free journal. BPlog is dedicated to helping you manage high blood pressure.

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We prospectively assessed the association of systolic blood pressure (SBP) after exercise with the risk of an acute myocardial infarction.

Blood Pressure Readings: Blood Pressure Machines for Measuring  (blood pressure reading)
Blood pressure readings with CSI Model 3K blood pressure machines are an accurate, fast and non-invasive way of measuring blood pressure.

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Blood Pressure/Cholesterol: reader comment from ameds - CNET News.com (blood pressure reader)
Blood Pressure/Cholesterol: reader comment from ameds. Posted on: December 8, 2007, 6:13 AM PST. Story: Google-tools-to-power-virtual-worlds

Blood Pressure Monitoring at Home -- familydoctor.org (blood pressure read)
The blood pressure measurement is easy to read, because the numbers are shown on a . Look at the display window to see your blood pressure reading.

Wartime Raises Stress, Blood Pressure Rates In Military Offspring (blood pressure rates)
Children with parents in the military have higher blood pressure, heart rates and general stress levels than their peers during wartime, researchers say.

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body temperature; pulse rate; respiration rate (rate of breathing); blood pressure (Blood pressure is not considered a vital sign, but is often measured

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mean age was 73.5 ±8.7 (range 60-94). The age . bedside increased systolic blood pressure by 27. (range 4-75) mmHg and diastolic by 1 5 (range

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For example, blood pressure readings of 138/82, 128/89, or 130/86 are all in the prehypertension range. If your blood pressure is in the prehypertension

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High blood pressure in children - an article on high blood pressure in children. you need to be able to accurately assess the true blood pressure range.

Keep Blood Pressure Chart Handy For Daily Analysis (blood pressure range chart)
Find out whether your blood pressure is normal by using this blood pressure classification chart.


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