Definition of Cholesterol is a fatty compound complex, of which 80% is generated from within the body (liver), and 20% were from outside (food substances) to a variety of functions, one of them to form cell walls. Cholesterol in food substances, can increase the levels in the blood. But if revenues as needed, you should not worry, your body will stay healthy. Cholesterol is not soluble in blood, to be sent to the whole body needs to be packaged together with proteins into particles called lipoproteins, which can be considered as a 'carrier' in the blood
Type of Cholesterol
LDL (Low Density Lipoprotein)
This type of cholesterol is dangerous, so often called as bad cholesterol. LDL carries most cholesterol in the blood. High levels of LDL lead to deposition in the arteries. LDL is the major risk factor for coronary heart disease, as well as the main target in the treatment.
HDL (High Density Lipoprotein).
This type of cholesterol is not dangerous. HDL carries fewer than LDL, and often called good cholesterol, because it can remove the excess of bad cholesterol in the arteries back to the liver, to be processed and disposed. HDL prevent sediment in the arteries and protects blood vessels from the process of atherosclerosis (plaque formation on blood vessel walls).
In addition to LDL and HDL, which is important to know is triglycerides, which is one type of fat found in blood and various organs in the body. Increased levels of triglycerides in the blood may also increase cholesterol levels. A number of factors can affect levels of triglycerides in the blood such as obesity, alcohol consumption, sugar and fatty foods. High levels of triglycerides (TG) can be controlled with low-carbohydrate diet.
The increase of one type of cholesterol known as hiperelipidemia / dyslipidemia / hypercholesterolemia, excess LDL can be deposited on the walls of blood vessels that would lead to narrowing and hardening of the arteries, or called atherosclerosis (plaque formation on blood vessel walls).
If the narrowing and hardening is quite heavy, then the blood supply is not sufficient in number to the heart muscle, and arises pain or chest pain, called angina, and if continued, will cause death of heart muscle tissue, called a myocardial infarction. If this is widespread, it will cause a condition called heart failure. If this blockage of blood vessels invade the brain, then it will be a stroke. This is where cholesterol (especially LDL) contribute negatively to health and should always be in control.