human
I've heard that there are many different types of cholesterol. What are they?
assistant
Cholesterol is a lipid found in the cell membranes of all animals. It plays an important role in many biological processes, including the synthesis of hormones and bile acids, and it helps to maintain the structure of cell membranes. There are several different types of cholesterol, but the most common is low-density lipoprotein (LDL), which transports fat molecules throughout the body. High levels of LDL cholesterol can increase your risk for heart disease.