About Cholesterol and Heart Disease What is cholesterol? It’s a natural waxy substance present everywhere in the body, including the membranes, cell walls, skin, liver, muscles, nerves, brain and heart. Your heart needs cholesterol to function properly....

High Blood Cholesterol Level Complications LDL is also commonly called “bad cholesterol” as it forms plaques blocking blood arteries and preventing the body from functioning as it should. When the plaques are still small and soft, the symptoms may not be...

Cholesterol Numbers and Blood Tests People with high cholesterol almost never experience any symptoms of it, so the condition can remain unnoticed for years. It’s more likely to have high blood cholesterol because of family history of this condition, but...