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.

average blood pressure reading
What is the average blood pressure & heart rate and all that
It is the first or top number of a blood pressure reading. . to be accurate you need to take it evryday and average it out over a two week period

Blood Pressure
There are occasions when blood pressure and other ocular findings confirm . This reading will be a close estimate of the systolic pressure and will help

Blood Pressure Home Page
Many people define normal blood pressure as an average reading of 120/80 mmHg or below. An average blood pressure can only be determined when multiple

eMJA: Ambulatory blood pressure monitoring
The database was drawn from 4577 participants with repeated normal casual blood pressure readings of less than 140/90 mmHg.

Tips to Control High Blood Pressure
For those who fall into several risk categories, experts recommend purchasing a blood pressure cuff and a stethoscope and taking your own pressure reading

Do you know what your blood pressure is? You should!
Take your blood pressure twice a day (two readings each time) for one week to get an average blood pressure. Then, talk to your physician about the readings

Medinfo: Hypertension (high blood pressure)
Thus a blood pressure (BP) reading taken by the doctor only represents a prints out all the results, giving the highs, the lows, and the average (mean).

Blood pressure: A chart explaining your blood pressure reading
To get an accurate blood pressure reading, your doctor should evaluate your readings based on the average of two or more blood pressure readings taken while

blood pressure
Average diastolic blood pressure, Average systolic blood pressure. less than 120, 120â“139, 140â“159, 160 and higher. less than 80, normal, prehypertension

Medindia.net - Blood Pressure charts
Itâ™sa means just to alert you whether your blood pressure level is on par with your age. Average Blood Pressure For young people â“ 120/80 mmHg

Average Blood Pressure Levels On Rise Among American Children And
In 1988-94, the children's average systolic blood pressure was 104.6 mm Hg and their . Systolic -- Not Diastolic -- Blood-Pressure Reading Should Define

Blood Pressure Readings
To determine your average or typical blood pressure, your doctor may therefore ask you to take readings at various times during the day.

What is Average Blood Pressure and When should you Worry? | Health
Your average blood pressure can indicate much about your overall health. That is why it is so important to have regular blood pressure readings taken and to

Blood pressure measurement
Average daytime ABPM blood pressure is lower than equivalent blood pressure readings. A high reading using ABPM is:. above 135/85 for the general population

Blood Pressure Monitors - machines for home use.
In the meantime, you can use the list of blood pressure monitors below, . The average of your readings is displayed at the bottom of the chart and there

Blood pressure - Wikipedia, the free encyclopedia
For blood pressure readings taken with a home monitoring device to be accurate, an average systolic blood pressure of 112.4 mm Hg and an average

High blood pressure (hypertension)
A typical normal blood pressure reading would be 120/80 mmHg. . By treating hypertension well, complications can be avoided and average life expectancy

Low blood pressure
Until recently, normal blood pressure was considered to be the average blood They have an average blood pressure of 96/62 mmHg and this does not rise as

Blood Pressure Chart - Normal Blood Pressure Range
BP monitor readings must be taken at different times of day, to determine AVERAGE blood pressure over time. What is important is your AVERAGE BP,


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