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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Emerald FullText Article : Salt and blood pressure Our analysis indicates that at the age of 60 this will lower systolic blood pressure by about 5mmHg on average and by 7.5mmHg in hypertensives. MODEST WEIGHT LOSS AND BLOOD PRESSURE CONTROL;IT REALLY DOES WORK lot overweight), average age 43 years, with an average systolic pressure of weight loss was greatest, the diastolic blood pressure fell, on average, High blood pressure (hypertension) There is a natural tendency for blood pressure to rise with age due to the . By treating hypertension well, complications can be avoided and average life High Blood Pressure - Age Page - Health Information Among people age 65 and older, about 40 percent of Whites and 50 percent of Blacks Although the average blood pressure reading for adults is 120/80, WikiAnswers - What is the average blood pressure of men versus age Average blood pressure? Average weight per age? Blood pressure per age? What is average blood pressure? What is the Average blood pressure for a man? Blood Vessels Some 'average' blood pressures relating to age. Parameters such as age, sex, and race influence blood pressure values. In Western societies, blood pressure Low blood pressure They have an average blood pressure of 96/62 mmHg and this does not rise as they get Increasing age As you get older, your arteries stiffen and are less Blood Pressure Although the average blood pressure reading for adults is 120/80, a slightly higher Classification of blood pressure for adults age 18 years and older NIH/NHLBI News Release--Average Blood Pressure Levels On Rise The mean age for both groups was just under 13 years. In 1988-94, the childrenâ™s average systolic blood pressure was 104.6 mm Hg and their average diastolic Medindia.net - Blood Pressure charts Medindia's simple tool alerts you if for your age your blood pressure is abnormal by displaying Average Blood Pressure For young people â“ 120/80 mmHg |
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