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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Blood Pressure Chart - Normal Blood Pressure Range Blood pressure readings vary depending on a number of factors, including age. A blood pressure reading of less than 90 over 60 may be considered too low. Your Health - Blood Pressure Testing and Measurement The top number can be anywhere from 90 to 240 and the bottom number can be anywhere from 60 to 140. Blood pressure is measured in millimetres of mercury, Measuring Blood Pressure, what the numbers mean. A blood pressure of 90 over 60 (the top number is called the systolic pressure, the bottom number the diastolic) is actually ''normal for many people," said Response-LowCarbDiets My blood pressure is low: 90 over 60. Is there anything I can do to raise it? A blood pressure of 90 over 60 (the top number is called the systolic Can low blood pressure be dangerous? - The Boston Globe Your blood pressure is low if less than 90 over 60 mm Hg (if you're blood pressure falls outside of this range, either too high or too low, you should speak Penn Cardiac Care: What is High Blood Pressure or Hypertension? People over 60 who suffer from high blood pressure receive the least High blood pressure is more than 140 mm Hg for the systolic reading and over 90 People over 60 with high blood pressure get less lifestyle advice It is the diastolic blood pressure (bottom number) that causes concern when it goes over 90 because it measures the pressure created against the arterial Ask the Dietitian - by Joanne Larsen MS RD LD - Salt & Sodium I have always had extremely low blood pressure (one time it was 60/48 - the nurse took it 3 times and then . Mine has always been 80 or 90 over about 50. Gluten-Free Celiac Disease Forum at Celiac.com (Home) > Low Blood The blood pressure numbers, our reading, are only two of the important 65.4%-Percentage of those over 60 years of age. 90%-Percentage of people who will |
| blood pressure 90 over 60 |
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