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 pressure effects |
|
Heartpoint: High Blood Pressure Information Firstly, any condition that dilates or contracts the blood vessels or affects their elasticity, affects the blood pressure. Secondly, any disease of the Blood pressure: information about, high blood pressure, symptoms Exactly what causes this spike in blood pressure is uncertain. Some researchers suggest that caffeine narrows blood vessels by blocking the effects of Caffeine: How does it affect blood pressure? - MayoClinic.com The summary below is from the full report titled "Systolic Blood Pressure, Diastolic Blood Pressure, and Pulse Pressure: An Evaluation of Their Joint Effect Effects of Blood Pressure Measurements on Mortality -- 139 (9): I Having hypertension, or high blood pressure, reduces blood flow in the brains of adults with Alzheimer's disease, according to a new study. Blood pressure - Wikipedia, the free encyclopedia Blood pressure and hypertension facts. Learn what is considered a normal blood Controlling Blood Pressure Works · Does tea offset the effects of What is blood pressure? Health information discussion on what affects blood pressure (exercise, nutrition, alcohol, stress, smoking). McKinley Health Center - What Does Blood Pressure Mean High blood pressure affects the blood vessels, causing them to clog or become weak. It is therefore one of the important factors causing: High Blood Pressure Health Effects Arterial blood pressure (BP) is most accurately measured invasively. .. Aside from the white coat effect, arterial pressure readings outside of a High Blood Pressure: Things You Can Do to Help Lower Yours High blood pressure is a symptom of some other health problem that is affecting seniors. It can be caused by illness, obesity, smoking or some genetic Effect of High Blood Pressure Stress may affect blood pressure. To help combat the effects of stress, try relaxation techniques or biofeedback. These things work best when used at least |
| blood pressure effects |
|
blood pressure medicines list bloodpressure monitors blood pressure of abdominal aorta blood pressure nose bleed |