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. |
| blood low number pressure |
|
Blood Pressure FAQs - Virgin Life Care The first number is the systolic pressure or the pressure when the heart Hypotension is the medical term for low blood pressure (under 90/60 mmHg). Translating Blood Pressure Numbers It is crucial to ÁœKnow Your NumbersÁ« with respect to Blood Pressure. However, one form of temporary low blood pressure can cause lightheadedness. 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 Are Your Blood Pressure Numbers Low Enough? Enter your most recent blood pressure numbers and get an evaluation based on the new medical guidelines. University of Illinois Medical Center:Health Library Low blood pressure is a term for blood pressure that is abnormally low. Hg. The systolic blood pressure is the top number of a blood pressure reading. What is blood pressure? Blood pressure is always given as these two numbers, the systolic and diastolic pressures. Both are important. Usually they are written one above or before Low blood pressure - hypotension Low blood pressure or hypotension is persistent abnormally low blood pressure. Blood pressure is the pressure of blood in your arteries. 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. MedlinePlus Medical Encyclopedia: Blood pressure Stage 2 high blood pressure:. Top number is consistently 160 or over or the bottom number reads 100 or over. Low blood pressure (hypotension): Blood Pressure (Low) Low Blood Pressure, also known as Hypotension, occurs when blood pressure is weak and oxygen The systolic number is higher and is always shown on top. 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. MedlinePlus: Low Blood Pressure The primary NIH organization for research on Low Blood Pressure is the National Your blood pressure reading uses these two numbers. Both are important. Low blood pressure At this time, it was thought that low blood pressure was a major cause of depression and tiredness. Many people were quite wrongly treated for low blood Blood Pressure, A Doctor's Practical Guide With Insider's Tips Does low blood pressure cause symptoms? Or is it another silent killer? The blood pressure numbers, our reading, are only two of the important blood Low Blood Pressure Because a number of psychological factors may also underlie low blood pressure (of no known cause), patients may benefit from psychological support. Low blood pressure (hypotension) - MayoClinic.com Low blood pressure (hypotension) Á” Comprehensive overview covers symptoms, causes and treatment of this condition. Low Blood Pressure However, there are a number of forms of low blood pressure that require diagnosis, evaluation and treatment. People may seek treatment for low blood Low blood pressure (hypotension): Causes - MayoClinic.com Some experts define low blood pressure as readings lower than 90 systolic or 60 diastolic Á” you need to have only one number in the low range for your blood Low Blood Pressure (Hypotension) Causes, Symptoms, Diagnosis, and Unlike high blood pressure, low blood pressure is defined primarily by signs and symptoms of low blood flow not by a specific blood pressure number. |
| blood low number pressure |
|
blood lacrosse monitor pressure wrist blood high normal pressure reading anxiety causes high blood pressure blood controlling high naturally pressure |