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.

blood pressure age group
High Blood Pressure (Hypertension) - Patient UK
However, certain groups of people with blood pressure in this range are advised . a cardiovascular disease such as a heart attack before the age of 60.

Blood Pressure Hypertension Systolic Diastolic
Additionally this large study indicated a poor level of awareness, treatment, and control of high blood pressure in all age groups.

Blood Pressure Support Groups
Blood Pressure Support Groups are run by people with high blood pressure for people with high blood pressure. By going to Group meetings you can find out

Men's Health - High Blood Pressure / Hypertension
persons in their early to middle adult years; men in this age group have higher blood pressure more often than women in this age group.

Science Project 2002
The purpose of this experiment was to compare the effect of exercise vs. rest on the blood pressure of different age groups.

More Children On Chronic Medications For Blood Pressure
For example, the number of males between 15 and 19 using a blood pressure drug increased by 15.4 percent even as the number of females in the age group

Alzheimer's and Dementia : P3-131: Blood pressure and cognitive
It is unclear whether the relation between blood pressure and later cognitive performance is similar across age groups. Objective: To examine the

Blood Pressure and Length of Stay in Australia of Italian
Blood pressure and age. Fig. 1 shows that Australians and Italians of. both sexes had higher SBP and DBP in successive. age groups. In all age groups SBP

WHO Global InfoBase: : All Data
3 InfoBase links to other related resources for Blood Pressure, Raised (here) Lines in bold indicate the value represents a "Total Age Group"

AGE, SEX AND SPECIES VARIATIONS ON BLOOD PRESSURE IN NORMAL RATS
this age group), fell into blood pressure range I. This percentage of group I fell. to 68 per cent (i.e., 37 rats) in the 450 to 500 day age group,

Blood Pressure Control for Elderly Should Have Higher Priority
In the less than 60 age group, 26.9% had high blood pressure; in the 60-79 group, 58.9% had high blood pressure and 70.9% had high blood pressure in the 80

How being older affects your blood pressure - CNN.com
As with high blood pressure in younger age groups, you may feel just fine and not realize you have the condition. High blood pressure typically doesn't have

It's Still the Blood Pressure
Only 6.9% of this older-age group were classified as having normal blood pressure (< 120/< 80 mm Hg); the remaining 19.1% were classified as having

Lothian Health and Life Survey 2002
The data in table 2.11 indicates a sudden small rise in high blood pressure not requiring drug treatment in the respondents from the 35-44 age group for

JSTOR: The Relationship of Blood Lead Levels and Blood Pressure in
The rows of the table correspond to 20 year age groups that have consecutive Table 1. Increase in systolic and diastolic blood pressure for a doubling of

IngentaConnect Blood Pressure Changes After Aortic Coarctation
The effect of surgery on the blood pressure was investigated. hypertension seemed to increase in the older age groups in spite of the surgery.

Cholesterol-Stroke Relationship Puzzling - Cholesterol Information
And in the 70- to 89-year-old age group, higher cholesterol levels were that the combination of high cholesterol and elevated blood pressure might have

Number of adults in U.S. with high blood pressure rose in last decade
Reflecting the age-related association with high blood pressure, the number of people with hypertension was about 4.4 million in the 18â“34 age group;


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