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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High blood pressure and exercise: Why activity is key - CNN.com But you don't need to sit back and wait for high blood pressure to strike. Get moving! Regular exercise can help prevent high blood pressure, which reduces Hypertension/High Blood Pressure Health Center Lowering high blood pressure can be a benefit of regular exercise. Over time, aerobic exercise can help decrease your heart rate and blood pressure and High Blood Pressure During Exercise A study from Johns Hopkins shows that people who develop very high blood pressure during exercise are the ones most likely to develop high blood pressure in Mild High Blood Pressure: Exercise OK? New research from Johns Hopkins University shows that six months of moderate exercise didn't strain heart health in 104 adults with mild, untreated high Is exercise blood pressure a marker of vascular endothelial Blood pressure (BP) during exercise is routinely measured during treadmill testing of individuals with chest pain. An abnormal response, whereby the BP High Blood Pressure and Exercise - High Blood Pressure Investigators at Tulane Medical School studied the results of a large number of clinical trials that looked at the effect of exercise on high blood pressure Exercise : as treatment to manage Blood Pressure Many studies involving different age groups and differing exercise have shown that regular physical activity lowers blood pressure for those who have High Blood Pressure and Exercise - August 1, 2002 - American Athletes and other people who exercise regularly are less likely to have high blood pressure and heart problems than people who don't exercise. High blood pressure and exercise: Why activity is key - MayoClinic.com High blood pressure and exercise â” Here's what the connection means to you. Your High Blood Pressure Questions Answered â” Blood Pressure and Find out what happens to your blood pressure during exercise. Although blood pressure goes up during any kind of exercise, the changes brought on by Exercise Hypertension Although doctors are unsure why this exaggerated blood pressure response during exercise occurs in otherwise healthy individuals, some suggest that it may |
| blood pressure and exercise |
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