What the hell is cholesterol? Cholesterol is a kind of blood lipid, which includes cholesterol, triglycerides and lipids, and literally, since it contains the word gall, it is related to gall. Cholesterol was found in gallstones more than 200 years ago, and it has a high name of “cyclopentane polyhydrophenanthrene”. Why is there cholesterol in gallstones? It turns out that cholesterol is an important raw material for the synthesis of bile acids, and gallstones are the product of bile acid condensation, right? In fact, cholesterol is also an important component of cell membranes and is used to synthesize many hormones, and it is also essential for the synthesis of vitamin D, which is often referred to as a calcium supplement. So the question arises again, where does cholesterol come from, it doesn’t fall from the sky, right? If the liver produces too much cholesterol and forms hypercholesterolemia, it will spill a lot of cholesterol on the road during the transportation process. This road in the human body is the wall of the blood vessels, the ground potholes as atherosclerosis makes the blood vessels narrow, the walls of the blood vessels are not smooth, it is also easy to thrombosis, specifically to the disease is coronary heart disease, myocardial infarction, cerebral infarction, vasculitis and so on.