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.

bp blood pressure
Kidney and Blood Pressure Research
Karger is a medical publisher, scientific publisher and biomedical publisher of print and online journals and books.

Blood Pressure Monitoring - home
Provides access to full-text and online-only content, features and services, author submission materials and title-specific information.

Abnormal Blood Pressure - Blood Pressure Too High - Blood Pressure
Measuring blood pressure at home leads to questions about odd readings. You may wonder what to do if you get a particularly high reading (hypertension) - or

High Blood Pressure
Many people have high blood pressure for years without knowing it. Uncontrolled high blood pressure can lead to stroke, heart attack, congestive heart

Blood pressure - Wikipedia, the free encyclopedia
Blood pressure (strictly speaking: vascular pressure) refers to the force exerted by circulating blood on the walls of blood vessels, and constitutes one of

blood pressure,blood pressure controller,bp,blood,pressure
blood pressure controller bracelet, an health equipment for controlling high pressure without side effects.

Blood Pressure Guide
Obesity, high cholesterol and high blood pressure are all cousin brothers! They hold your body to ransom and will not hesitate to pin you down at the most

Your Guide to Lowering High Blood Pressure, NHLBI
This site, for people who want to learn about preventing and controlling high blood pressure. Based clinical guidelines and research studies,

High Blood Pressure Treatment and Medication - BP Success Zone
Information about high blood pressure, including medication and treatment with lifestyle changes. Learn about the BP Success Zone, a program guaranteed to

Blood Pressure Association: High blood pressure - take control
Take Control of high blood pressure. The Blood Pressure Association is fighting high blood pressure (hypertesion) to beat stroke and heart disease.

What Is Blood Pressure? Guide to Lowering HBP
Blood pressure is the force of blood against the walls of arteries. Blood pressure is recorded as two numbersâ”the systolic pressure (as the heart beats)


bp blood pressure
child blood pressure reading
c 12 peptide blood pressure
bulimia and low blood pressure
blood pressure sensors