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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Caffeine: How does it affect blood pressure? - MayoClinic.com Caffeine can temporarily increase blood pressure, but its long-term effects on blood pressure Fibromuscular dysplasia: A cause of high blood pressure? High blood pressure: Lifestyle changes to control it - MayoClinic.com High blood pressure: Lifestyle changes are an essential part of controlling As with caffeine, the influence of stress on blood pressure isn't settled. Go Ask Alice!: Does caffeine raise blood pressure? Some folks develop a tolerance to caffeine, and it no longer has this effect. There is no evidence that caffeine causes high blood pressure, also known as Does Coffee Raise Blood Pressure? (INeedCoffee.com) I think itâ™s safe to conclude that enough reliable evidence exists that can put to rest the claim that coffee/caffeine contributes to high blood pressure Understanding Caffeine and High Blood Pressure To understand the correlation between caffeine and high blood pressure you must first understand the basics of high blood pressure. High blood pressure Caffeine: How does it affect blood pressure? - Yahoo! Health Caffeine can increase blood pressure temporarily. You might not know you have high blood pressure until it causes a serious or life-threatening BBC NEWS | Health | Caffeine 'does not raise blood pressure' A Swiss study indicates that the caffeine contained in coffee is not, as was widely Dr Thom said coffee was not the main cause of high blood pressure Caffeine and High Blood Pressure This eMedTV page examines research on caffeine and high blood pressure. This research shows that drinking caffeinated beverages produces only short-term The Coffee Blood Pressure Connection - Caffeine and High Blood Coffee and tea are the most popular beverages in the world, and both contain significant amounts of caffeine. Is this caffeine bad for you, and can it cause Alcohol, Coffee, Smoking and High Blood Pressure - High Blood Limiting caffeine intake and cigarette smoking in hypertensive individuals, therefore, may be of some benefit in controlling their high blood pressure. Sport Syndicate: Relating High Blood Pressure to Caffeine Consumption Sport Syndicate: Featuring sports news, commentary, opinions, and rants on teams from Chicago, Notre Dame and occasionally Nashville. Coffee At Work Equals High Blood Pressure "The relevant message here is that the more caffeine you consume during the day in coffee, tea, or soft drinks, the higher your blood pressure is likely to High Blood Pressure and Caffeine Drinking too much caffeine is one mistake that many high blood pressure sufferers make. If you think your morning cup of coffee and your afternoon can of High Blood Pressure and Caffeine - A Dangerous Combination Caffeine and high blood pressure can be a deadly combination. Simply said, the two things don't mix. Caffeine: How does it affect blood pressure? - MSN Health Caffeine can temporarily increase blood pressure, but its long-term effects and diastolic pressure 4 to 13 mm Hg in people without high blood pressure. Habitual Caffeine Intake and the Risk of Hypertension in Women However, the effect of caffeine on blood pressure in the long run is unclear. High blood pressure is a chronic disorder that affects 50 million people in Study: Caffeine may increase blood pressure - Heart Health - Body As a result, he advises that people with high blood pressure or who are at risk for high blood pressure limit their caffeine intake. The Daily Headache: Mixed Findings on Caffeine and High Blood Pressue The findings about coffee intake can't exactly be generalized to include all caffeine. The Harvard study found a much greater risk of high blood pressure in Caffeine: How does it affect blood pressure? - OhioHealth Caffeine can increase blood pressure temporarily. But it's unclear whether it has a long-term Fibromuscular dysplasia: A cause of high blood pressure? |
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