In order to define cholesterol metabolism we ougth to explain several notions for a better understanding. The effects, causes and possible problems that may be related to cholesterol require special attention. What do we understand by cholesterol? Medical dictionaries explain that cholesterol is a substance that comes from animal-based foods. The substance is metabolized in the liver and it has a role in the building of nerves, the generation of cells and the secretion of certain hormones. However, the growth of the cholesterol level above the normal level presents high health risks for the heart and the circulatory system. Otherwise, in moderate amounts, this blood fat is necessary to the body.
The other notion to present in connection with cholesterol metabolism is obviously metabolism. All the chemical reactions that happen in the body are known as metabolism. To go a little bit further with the explanation, you should be aware of the two types of metabolism that exist: building up – anabolism, and breaking down – catabolism. With anabolism, small molecules create large ones, amino acids turn into protein. Obviously catabolism involves the reversed process, large molecules break into smaller ones, thus glycogen becomes glucose.
Cholesterol metabolism is the sum of the catabolic and anabolic processes involved in synthesizing and degrading the cholesterol in the body. Serum cholesterol level increases when it is ingested and very quickly absorbed. Besides the liver, the ability to synthesize cholesterol is specific to all the body tissues. The more cholesterol is taken in, the less it is processed by the body. The cholesterol removal from the body is done by bile excretion after it is broken down in the liver.
High cholesterol is also caused by a sum of factors that increase the risks for one’s health. Thus, genetic factors, improper diet, a sedentary lifestyle, and, as a result, weight gain, all together turn into an extreme drawback for cholesterol metabolism. High blood pressure, diabetes, hypothyroidism and other health problems can also be a cause for high cholesterol levels. In some cases it is simply the liver which cannot accomplish its tasks. If you have a family history of high cholesterol, watch your health more carefully. Unfortunately for those who are predisposed genetically to elevated cholesterol levels, even the toughest low-fat or no-fat diets are of no much use. Medication can surely help. In other situations, a proper diet and a lot of physical activity can do much good.
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