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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Abnormal Blood Pressure - Blood Pressure Too High - Blood Pressure The first thing you should do when your blood pressure monitor gives you an abnormally high or abnormally low reading is to take your blood pressure again. Using EFT for High (or low) Blood Pressure This is true for both high blood pressure and low blood pressure. once properly resolved, many blood pressure clients enjoy normal readings. Low blood pressure (hypotension) - CNN.com Many people who have low blood pressure (hypotension) are healthy and have no signs or symptoms related to lower than normal readings. Steeles.com Taking Blood Pressure Correctly You may take blood pressure readings every day- but just how accurate are your cuff may be too big, leading to falsely low blood pressure readings. Low blood pressure It is only in a tiny minority of people with low blood pressure, ie, readings below 90/60 mmHg, where there is an underlying cause and treatment may be Blood Pressure Chart - Normal Blood Pressure Range You must check your BP far more often than once a year, especially if you show "borderline" readings. I can produce a very high, or very low blood pressure Blood pressure measurement To take a blood pressure reading, you need to be relaxed and comfortably seated when symptoms suggest the possibility of low blood pressure due to over- MedlinePlus Medical Encyclopedia: Blood pressure Consult your provider if your blood pressure measurements are consistently high or low or if you have symptoms at the same time as the high or low reading. High & Low Blood Pressure Archive - HealthBoards.com Message Boards View Full Version : High & Low Blood Pressure . Yasmin and high blood pressure · high blood pressure readings at home. ANXIETY AND BP READINGS All about low blood pressure Low blood pressure, or hypotension, generally refers to a blood pressure reading below an average of about 120/80 mmHg. However, it is often of little Blood Pressure Guide When BP is low, there is not sufficient flow of blood to deliver enough oxygen and Types Of Blood Pressure Have you checked your blood pressure reading? Low blood pressure - WebMD What Is Low Blood Pressure? Hypotension is the medical term for low blood pressure (less than 90/60). A blood pressure reading appears as two numbers. Low blood pressure Low blood pressure - is the pressure reading below 100/70mmHg. Usually sportive or strong persons will have strong heart and stable lower pressure than MedlinePlus: Low Blood Pressure Some people have low blood pressure all the time. They have no symptoms and their low readings are normal for them. In other people, blood pressure drops lifeclinic.com - Low Blood Pressure It was decided to define low blood pressure as the lowest 5 per cent of all the blood pressure readings. This gave levels of 115/70 mm Hg for daytime Blood pressure (low) Introduction - Health encyclopaedia - NHS Direct Low blood pressure is also known as hypotension. People with a reading of around 90/60, or less, are commonly regarded as having low blood pressure. Low blood pressure (hypotension) - MayoClinic.com Low blood pressure, also called hypotension, would seem to be something to downward revision of what is considered a normal blood pressure reading. Low blood pressure (hypotension): Causes - MayoClinic.com Higher readings indicate increasingly serious risks of cardiovascular disease. Low blood pressure, on the other hand, is much harder to quantify. Low Blood Pressure Within limits, the lower your blood pressure reading is, the better. In most people blood pressure isn't too low until it causes symptoms such as |
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