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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Heartpoint: High Blood Pressure Information You become another person with untreated high blood pressure and its Even if youâ™ve previously had normal pressure, you should have it taken at least ACOG Education Pamphlet AP034 -- High Blood Pressure During Pregnancy These short-term changes in blood pressure are normal. It is only when a person's blood pressure stays high for some time that it may signal a problem. Hypertension (high blood pressure) - Health & Wellbeing The heart pumps blood into the arteries and at the moment of most forceful contraction, the pressure in the arteries (in a normal person) is about 120 mm Fainting: Low Blood Pressure: Merck Manual Home Edition Problems With Blood Pressure: Fainting that occurs when a person sits or stands electrical activity for 24 hours or more as the person engages in normal Cardiovascular & Circulatory System Health - Promote Normal Blood Natural Remedies to Maintain Normal Blood Pressure. The content of these images is not meant to suggest that the person depicted uses or endorses our Hypertension (High Blood Pressure) Every person needs blood pressure to live. Without it, blood wouldn't be able to Doctors recommend that older teens with normal blood pressure get their High Blood Pressure: Heart and Blood Vessel Disorders: Merck People who have normal blood pressure at age 55 have a 90% risk of .. If a person has an initial high reading, blood pressure is measured again during Measuring Blood Pressure, what the numbers mean. If your blood pressure is on the high side of 'normal' (between 130/85 and The person taking your blood pressure will put a cuff around the top of your Normal Blood Pressure: What Is It And How Important Is It? Normal blood pressure is that range wherein a person is said to be healthy and at the least risk for heart disease. High long-term blood pressure puts one Blood pressure - Wikipedia, the free encyclopedia While statistically normal values for arterial pressure could be computed for any given population, there is often a large variability from person to person Medinfo: Hypertension (high blood pressure) The level that is accepted as "normal" for blood pressure is one which falls within a range A person's blood pressure alters from minute to minute. Women With High Or Increasing Blood Pressure Are Up To Three Times NHLBI Study Finds High-Normal Blood Pressure Increases Cardiovascular Risk (Nov. 6, 2001) â” High-normal blood pressure significantly increases the risk of DHDSP - About High Blood Pressure For example, a person with a high systolic pressure but a normal diastolic pressure will be considered to have high blood pressure (sometimes referred to as What causes low blood pressure? - Yahoo! UK & Ireland Answers Each person has a certain normal setting for their basal blood pressure - but the setting varies from person to person, kind of like differences in people's Blood Pressure, A Doctor's Practical Guide With Insider's Tips Normal Blood PressureIt's lower than you think Normal blood pressure varies from person to person. How can you tell what is normal for you? High Blood Pressure Blood pressure is characterized by abnormal pressure levels in the arteries. The blood pressure in a healthy, normal person is 90/60mmhg. Ask the Dietitian - by Joanne Larsen MS RD LD - Salt & Sodium As long as you have normal functioning kidneys and haven't had diarrhea or vomiting, . A person with high blood pressure and on blood pressure medication University of Illinois Medical Center:Health Library A person who has high blood pressure needs to continue to take the prescribed medications daily. Blood pressure may return to normal as a result of Risk of cardiovascular events among women with high normal blood The age adjusted event rate for the primary end point was 1.6/1000 person years among women with normal blood pressure, 2.9/1000 person years among those |
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