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 low diastolic
The Diastolic Blood Pressure in Systolic Hypertension
low diastolic blood pressure that separates patients. with isolated systolic hypertension from . If the J curve, a low diastolic blood pressure, and

Relation of low diastolic blood pressure to coronary heart disease
Relation of low diastolic blood pressure to coronary heart disease death in presence of myocardial infarction: the Framingham Study.

Translating Blood Pressure Numbers
The systolic pressure is always stated first and the diastolic pressure second. However, one form of temporary low blood pressure can cause

Diagnose-Me: About Diastolic Blood Pressure
"Don't know". 2. "Under 70 (low)", Low diastolic blood pressure, A symptom. 3. "70 to 89 (normal)", Normal diastolic blood pressure, A symptom

Low blood pressure (hypotension): Causes - MayoClinic.com
Some experts define low blood pressure as readings lower than 90 systolic or 60 diastolic â” you need to have only one number in the low range for your blood

Low blood pressure and depression in older men: a population based
Low diastolic blood pressure was a significant predictor of both mean In this study, older men with low diastolic blood pressure (<75 mm Hg) were more

Low blood pressure
Sudden drop in pressure or further drop in pressure in low pressure patients can make them collapse, thus endangering life. Low diastolic blood pressure

Low blood pressure - hypotension
Information about low blood pressure. Then it falls to a lower level, called the diastolic pressure, which it reaches just before each heartbeat.

The association between low diastolic blood pressure in middle age
The association between low diastolic blood pressure in middle age and cognitive function in old age. A population-based study. L Kilander, H Nyman,

Low blood pressure
Many people were quite wrongly treated for low blood pressure in the UK in the pressure in your arteries falls and this is known as diastolic pressure.

Blood pressure - Wikipedia, the free encyclopedia
The values of systolic and diastolic pressure are computed, not actually measured from the raw .. Blood pressure that is too low is known as hypotension.

Arch Intern Med -- Abstract: Low diastolic blood pressure and
BACKGROUND: A low diastolic blood pressure has been associated with increased cardiovascular risk. The following proposed mechanisms underlie this

Low Diastolic Blood Pressure
Blood pressure, Low diastolic pressure measures the pressure of the heart between resting of the beats.

The association between low diastolic blood pressure in middle age
The association between low diastolic blood pressure in middle age and cognitive function in old age: a population-based study from Age and Ageing in Health

Blood Pressure Hypertension Systolic Diastolic
Diastolic pressure is the lower number in a blood pressure reading. and following a low fat diet has been shown to help decrease high blood pressure.

MedlinePlus Medical Encyclopedia: Blood pressure
The bottom number is the diastolic blood pressure reading. your provider if your blood pressure measurements are consistently high or low or if you have

Low Blood Pressure (Hypotension) Causes, Symptoms, Diagnosis, and
The diastolic blood pressure (the bottom number) represents the pressure in the Unlike high blood pressure, low blood pressure is defined primarily by

Low Diastolic Blood Pressure
What is the significance of low diastolic blood pressure? Mine is sometimes as low as 50. I take medication for heart disease and for high systolic blood

Diastolic Blood Pressure Control: How Low Is Too Low?
At what point in the treatment of ISH does the potential harm of low DBP outweigh the benefit of lowering SBP? Is the increased event rate associated with


blood pressure low diastolic
cheap blood pressure cuffs
blood pressure high diastolic
blood pressure and stress
blood pressure cuffs review