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) - causes, treatments and What are the causes of secondary high blood pressure? It may be caused by a patient's anxiety related to the stress of the examination and fear that Anxiety: A cause of high blood pressure? - MSN Health & Fitness Anxiety doesn't cause persistent high blood pressure. But it can cause temporary spikes in your blood pressure, which can be just as harmful. Pheochromocytoma: high blood pressure, headaches, and anxiety. Headaches, anxiety, nervousness, and hypertension. adrenal tumor cancer adrenal thyroid gland high blood pressure hypertension adrenal adrenal adrenal High Blood Pressure (Hypertension) - Symptoms, Causes, Diagnosis What makes high blood pressure important is that initially it may cause no symptoms but can still cause serious longâ“term complications. InteliHealth: Some people with labile hypertension require anti-anxiety medications in order Pregnancy can cause high blood pressure due to hormonal changes or from a 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! Hypertension Hypertension is high blood pressure. Blood pressure is the force of blood pushing . stress or anxiety can cause a temporary increase in blood pressure. Anxiety & Blood Pressure I believe the higher blood pressure is directly related to anxiety which may If no secondary cause is found then the high blood pressure is said to be Anxiety vs High Blood Pressure - Heart Disease - MedHelp Anxiety vs High Blood Pressure. This forum is for questions and support . from the docs cause all they see is super high BP when I visit the office. Is anxiety raising my blood pressure? Finally, don't let your high blood pressure become another cause of anxiety for you. It is eminently treatable and after a conversation with your Anxiety: A cause of high blood pressure? - MayoClinic.com Anxiety can cause dramatic, temporary increases in blood pressure. |
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