What actually causes high cholesterol?

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Hei Man Chan |

TED-Ed

• January 2025

In 1968, the American Heart Association made an announcement that would influence people’s diets for decades: they recommended that people avoid eating more than three eggs a week. Their reasoning was that the cholesterol packed into egg yolks could increase cardiovascular disease risk. So, what exactly is cholesterol? And is it actually bad for you? Hei Man Chan digs into this complex molecule. [Directed by Igor Ćorić, Artrake Studio, narrated by Addison Anderson, music by Cem Misirlioglu].