High cholesterol

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Cholesterol is an important component of the membranes of cells, providing stability. It is the major precursor for the synthesis of vitamin D, of the various steroid hormones, including cortisol, cortisone, and aldosterone in the adrenal glands, and of the sex hormones progesterone, estrogen, and testosterone. Further recent research show that cholesterol has an important role for the brain synapses as well as in the immune system.

As today's testing methods determine LDL ("bad") and HDL ("good") cholesterol separetely, this simplistic view has become somewhat outdated. The desirable LDL level is considered to be 75-130 mg/dl (1.9-3.3 mmol/L), and a ratio of total cholesterol to HDL�arguably the most useful measure�of less than 5:1 is thought to be healthy.

Cholesterol is a steroid lipid, found in the body tissues (and blood plasma) of vertebrates. It can be found in large concentrations within the liver, spinal cord, and brain. It plays a central role in many biochemical processes, but is best known for causing cardiovascular disease when present in elevated levels.

The Cholesterol Myths
Review of this issue, written by an independent researcher, Uffe Ravnskov, MD, PhD.
National Heart, Lung And Blood Institute
In-depth look at cholesterol and why it matters, heart disease, benefits from lowering, having it checked, diet, exercise, weight and many more topics are discussed.
VAP Cholesterol Test - Atherotech
Information about the Vertical Auto Profile cholesterol test, which identifies twice as many people at risk than the traditional test, including those with inherited risk factors.
MDchoice.com
In four sections: Informs as to why blood cholesterol matters, guidelines for heart healthy living, cholesterol in children and fats and foods tables.
Inch Aweigh: Lowering Your Cholesterol - The Foods
A cholesterol-lowering guide that explains what to eat, what to avoid and why.

High cholesterol