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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Blood Pressure Average daytime ABPM blood pressure is lower than equivalent clinic blood pressure and so readings above 140/85 for non-diabetics and 140/80 for those Average Blood Pressure Levels On Rise Among American Children And Systolic and diastolic blood pressure levels for children and teenagers have risen substantially since 1988, according to a new study supported by the Tips to Control High Blood Pressure Control Your Pressure. The average adult has about five liters of blood flowing through the body via an intricate network of blood vessels called arteries, NIH/NHLBI News Release--Average Blood Pressure Levels On Rise In 1988-94, the childrenâ™s average systolic blood pressure was 104.6 mm Hg and their average diastolic pressure was 58.4 mm Hg. In 1999-2000, the childrenâ™s What is Average Blood Pressure and When should you Worry? | Health An average blood pressure will indicate that your cardiovascular system is functioning properly and that your many blood vessels throughout your body are Blood Pressure There are occasions when blood pressure and other ocular findings confirm the patient must . 1/2 The Average (Low), 3.4, 3.3. Average (Normal), 5.0, 4.4 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, 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 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 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 Blood pressure - Wikipedia, the free encyclopedia In a study of 100 subjects with no known history of hypertension, an average systolic blood pressure of 112.4 mm Hg and an average diastolic pressure of |
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