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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120/80 Not good enough! If your blood pressure is 120/80, you say that it is "120 over 80." Blood pressure changes during the day. It is lowest as you sleep and rises when you get What is blood pressure? Blood pressure below 120 over 80 mmHg (millimeters of mercury) is considered optimal for adults. A systolic pressure of 120 to 139 mmHg or a diastolic Blood Pressure Blood pressure is really two numbers written with a slash, such as 120/80. You may also hear someone say a blood pressure is "120 over 80." High Blood Pressure - Things you can do to help lower yours For example, a blood pressure measurement of 120/80 mmHg (millimeters of mercury) is expressed verbally as "120 over 80." Normal blood pressure is less What Is Blood Pressure? Guide to Lowering HBP The exact origin of the designation of 120/80 as the threshold for "normal blood pressure" is unknown. It may have come from the large amount of data Why is normal blood pressure less than 120 over 80? And why don't Blood pressure of less than 120 over 80 is considered a normal reading for people 18 and over. A borderline high systolic pressure of 120 to 139 or a Hypertension (High Blood Pressure) Previously a blood pressure of 120 over 80 was considered normal. The seventh report of the Joint National Committee on Prevention, Detection, Evaluation, Under Pressure Your doctor may say that your blood pressure is 120 over 80. This would be written as 120/80. Your GP may say your blood pressure is fine, BMJ BestTreatments :: Conditions :: High blood pressure :: What Blood pressure is measured using two numbers. An example of this could be 'the blood pressure is 120 over 80', which is written as '120/80mmHg'. High blood pressure (hypertension) Affects people with blood pressure as low as 120 over 80 -- once thought to be a Until now, optimal blood pressure was considered 120 over 80 or lower; Thought Your Blood Pressure Was Normal? Think Again What is healthy blood pressure? The American Heart Association recommends readings of 120 over 80, if not under. The first number is systolic, wcco.com - Blood Pressure: Know Your Numbers However, there is a range of "normal" blood pressure readings. Generally, a reading that is less than 120 over 80 indicates that you don't need to worry. Healthy Hearts: Hypertension/High Blood Pressure - The Human Heart It's a major change that affects people with blood pressure as low as 120 over 80 -- once thought to be a good level, but now considered not good enough. Blood pressure guidelines change Oakland Tribune - Find Articles From Dr. Oz of the Oprah show, he mentioned "optimal blood pressure to be 150 over something..is that right? I thought optimal was 120 over 80. From Dr. Oz of the Oprah show, he mentioned "optimal blood For example, if your blood pressure is 120/80 (described as 120 over 80), the systolic A normal adult blood pressure measurement is below 120 over 80. Meriter Health Services - Heart Hospital, High Blood Pressure For example, if your blood pressure is 120/80 (described as 120 over 80), the systolic measurement is 120. Diastolic: The diastolic number represents the Heart Center Normal blood pressure is less than 120 systolic and less than 80 diastolic, or "120 over 80" in doctorspeak. "Pre-hypertension," a new category, High Blood Pressure (Hypertension) If your blood pressure is 120/80, you say that it is "120 over 80." Your blood pressure changes throughout the day. It is lowest when you're asleep, |
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