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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High Blood Pressure (Hypertension) - What causes high blood More information. How does stress cause high blood pressure? How does smoking cause high blood How does eating too much fat cause high blood pressure? Ask the Experts: Stress and Low Blood Pressure on MedicineNet.com Stress Q&A by Dr. Stöppler. I've heard that stress may cause high blood pressure, but can it also cause low blood pressure? Medical Author: Melissa Conrad American Chronicle: Is High Blood Pressure a Stress Related Can excess stress cause high blood pressure? Can it really have that much effect on our health? This concept isnâ™t new. We have been hearing about it for as InteliHealth: 5. Stress causes high blood pressure. True False. 6. High blood pressure is not life threatening. True False. 7. Blood pressure is high when it's at or over High Blood Pressure Symptoms | Causes | Diet | Treatment Our website will let you know about detail information and causes of hypertension and high blood pressure. Obesity, Alcohol, stress, caffeine, high salt BBC NEWS | Health | Job stress raises blood pressure While stress is one cause of high blood pressure, there are a number of other things that can contribute, such as a poor diet, drinking too much alcohol, Does Stress Cause High Blood Pressure? Nearly every medical expert you ask will tell you that stress contributes to high blood pressure and high-risk patients are always advised to reduce their Work Stress and High Blood Pressure Studies into work patterns and blood pressure reveal significant associations between work stress and high blood pressure. Hypertension - Wikipedia, the free encyclopedia There are some anecdotal or transient causes of high blood pressure. Hypertension is often confused with mental tension, stress and anxiety. AskMen.com - High blood pressure Causes and signs of high blood pressure. A sedentary lifestyle, excess stress, low potassium intake, low calcium intake, and resistance to insulin may What is blood pressure? In many people with high blood pressure, a single specific cause is not known. Stress & High Blood Pressure. Panic attacks more common in people with Does Stress Cause High Blood Pressure? Does Stress Cause High Blood Pressure? Man under stress Stress can make blood pressure go up for a while, and it has been thought to contribute to high Site Map: Guide to Lowering High Blood Pressure Does Stress Cause High Blood Pressure? Does Smoking Tobacco Cause High Blood Pressure? Can Tranquilizers and Sedatives Lower Blood Pressure? Stress Education Center - Article on stress related high blood Stress and health related articles on topics such as high blood pressure, to control this problem before it can cause permanent, irreversible damage! Stress and high blood pressure: What's the connection? - CNN.com Fibromuscular dysplasia: A cause of high blood pressure. ⢠Free blood pressure machines: Are . Linking stress and blood pressure challenges researchers High Blood Pressure: Things You Can Do to Help Lower Yours What problems does high blood pressure cause? Does it have any symptoms? . Stress may affect blood pressure. To help combat the effects of stress, High blood pressure: Are you at risk? - MayoClinic.com Learn to manage stress. Tobacco products. Talk to your doctor if you need help However, certain medical conditions can cause high blood pressure. Understanding Stress: Signs, Symptoms, Causes, and Effects All about stress, including its signs and symptoms, causes, the factors that put you at Chronic pain; Migraines; Ulcers; Heartburn; High blood pressure Stress and high blood pressure: What's the connection Stress and high blood pressure â” Learn how short-term links can create long-term risks. Fibromuscular dysplasia: A cause of high blood pressure? |
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