Cholesterol is a fatty substance that forms an important part of the cell membrane used to produce hormones, bile acid, and vitamin D.
A lipid found in the cell membranes of all tissues, Cholesterol could be both good and bad.

This animation explains cholesterol, its metabolism and hypercholesterolaemia. It also gives an outline of the types of cholesterol and how both good and bad lipoproteins - High-Density Lipoprotein (HDL) and Low-Density Lipoprotein (LDL) – affect health. Diagnosis and life style modification are also dealt with.