Cholesterol is a fat-like content present in the human body, self-produced in the body or obtained from animal foods, such as egg yolk, meat, fish, and milk. The body needs cholesterol to form cell membranes, make certain hormones, and produce components that are used to digest fats. However, if the level of cholesterol in the body increases, it will bring a series of adverse effects and we call it a cholesterol disease. People with high cholesterol levels have a great risk for heart disease and stroke. In layman terms known to be good cholesterol (HDL) and bad cholesterol (LDL). However, in fact, all these cholesterol is the form of lipoprotein that is necessary and beneficial to the body if it is in the range of normal amounts. 60-70% of cholesterol in the blood is brought by LDL cholesterol (low-density lipoprotein). These lipoproteins are needed to transport the cholesterol needed for the metabolism of bile acids, steroid hormones, and vitamin D. However, if the amount of lipoprotein is increased, it will easily form plaque or blockage in the blood vessels, so-called bad cholesterol. This cholesterol not only attacks the heart but also can attack the eyes, this condition called cholesterol eyes.

While HDL (high-density lipoprotein) contains phospholipids and proteins produced by the liver and intestines. HDL carries cholesterol from the tissues to the liver for processing and is then removed from the body. This makes HDL acts as good cholesterol and is needed to prevent the formation of plaque that can lead to blockage of blood vessels. Consuming too many fatty foods, meat, sticks, and oily foods can increase LDL levels in the body. This will make a lot of LDL accumulated in the blood so that it can be risky in the formation of plaque in the blood vessels. Less physical activity will make LDL in the blood will accumulate more and HDL will decrease. This will result in not all cholesterol can be processed in the liver for further disposal, so that the buildup of LDL cholesterol in the blood increases. Smoking can lower HDL levels that result in increased LDL. HDL is too low can not bring cholesterol into the liver for processing and will only accumulate in the blood. High levels of cholesterol in the blood are also influenced by hereditary or genetic factors. If parents or family members have high LDL cholesterol levels, even from a young age, it is certain that the increase in LDL cholesterol is caused by genetic factors.