Science glossary film: Cholesterol

A type of lipid found in the tissues of humans and other animals. Cholesterol is an important component of cell membranes. Our bodies also use it to make vitamin D, essential for healthy bones, and hormones, like testosterone in men and oestrogen in women. While some cholesterol is vital for normal body function, too much can cause a build up plaque on artery walls, limiting blood flow and increasing the risk of heart disease.

Cholesterol is an important component of cell membranes. Our bodies also use it to make vitamin D, essential for healthy bones, and hormones, like testosterone in men and oestrogen in women. While some cholesterol is vital for normal body function, too much can cause a build up plaque on artery walls, limiting blood flow and increasing the risk of heart disease.