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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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 and resting BP Contrariwise, an increase in diastolic blood pressure of more than 10 mmHg during or after exercise represents an unstable form of hypertension, Lower your Blood Pressure What happens to my blood pressure after I exercise? What happens to my blood pressure during exercise? Check Your Health Club's Fitness 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 Exercise Hypertension âœMost clinicians focus on the patientâ™s blood pressure during rest, but our study shows that exaggerated blood pressure during exercise is a more sensitive Twenty-four hour blood pressure after exercise in patients with The objective was to assess the influence of a cardiac rehabilitation training session on blood pressure measured shortly after exercise and during the Systolic blood pressure during recovery from exercise and the risk We prospectively assessed the association of systolic blood pressure (SBP) after exercise with the risk of an acute myocardial infarction. Exercise : as treatment to manage Blood Pressure Nearly all exercises lower blood pressure. Endurance exercise such as walking, Exercise appears to reduce blood pressure in several different ways. Blunted Decline in Systolic Blood Pressure After Exercise Predicts Delayed systolic blood pressure recovery after graded exercise: an independent correlate of angiographic coronary disease. J Am Coll Cardiol. Histamine Tied To Changes In Blood Pressure During Exercise Overactivation of two receptors for histamine, normally associated with common allergies and acid reflux, may explain why some people, including highly High blood pressure and exercise: Why activity is key - MayoClinic.com High blood pressure and exercise are closely related. Learn how small changes in your daily routine can make a big difference. |
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