Cholesterol is a fat (also called a lipid) that your body needs to work properly. Cholesterol levels that are too high can increase your chance of getting heart disease, stroke, and other problems.
The medical term for high blood cholesterol is lipid disorder, or hyperlipidemia.
Lipid disorders; Hyperlipoproteinemia; Hyperlipidemia; Dyslipidemia; Hypercholesterolemia
Causes, incidence, and risk factors
There are many types of cholesterol. The ones talked about most are:
Total cholesterol - all the cholesterols combined
High density lipoprotein (HDL) cholesterol - often called "good" cholesterol
Low density lipoprotein (LDL) cholesterol - often called "bad" cholesterol
For most people, abnormal cholesterol levels are the result of an unhealthy lifestyle -- most commonly, eating a diet that is high in fat . Other lifestyle factors are:
Heavy alcohol use
Lack of exercise ...
Introduction Lipids are the building blocks of the fats and fatty substances found in animals and plants. They are microscopic layered spheres of oil, which, in animals, are composed mainly of cholesterol, triglycerides, proteins (called lipoproteins), and phospholipids (molecules made up of phosphoric acid, fatty acids, and nitrogen). Lipids do not dissolve in water and are stored in the body to serve as sources of energy. Cholesterol Cholesterol is present in all animal cells and in animal-based foods (not in plants). In spite of its bad press, cholesterol is an essential nutrient necessary for many functions, including: Repairing cell membranes Manufacturing vitamin D in the skin Producing hormones, such as estrogen and testosterone Possibly helping cell connections in the brain that are important for learning and memory Regardless of these benefits, when cholesterol levels rise in the blood, they can have dangerous consequences, depending on the type of cholesterol. Although the body acqu...
Cholesterol is a fatty substance produced by your liver. It's also found in foods high in saturated fat, such as meat, eggs, some shellfish, and whole-milk dairy products.
Your cells need some cholesterol to functional normally. But too much cholesterol in your blood can be harmful. High blood cholesterol levels can cause fatty deposits to build up on the walls of your arteries. This condition is known as atherosclerosis (sometimes called hardening of the arteries). Over time, the fatty deposits can decrease the amount of blood flowing in the arteries and eventually block blood flow entirely. This narrowing of the arteries can lead to heart disease, heart attack, and stroke. People who are overweight, eat a lot of foods high in saturated fat, or who have a family history of high cholesterol have an increased risk of high cholesterol levels. There are few symptoms of high cholesterol levels and a blood test is almost always needed to confirm it.
There are two kinds of cholesterol:
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