What type of cholesterol is often referred to as "bad" cholesterol?

LDL, or Low-Density Lipoprotein, is commonly referred to as "bad" cholesterol due to its association with an increased risk of cardiovascular diseases. When there is an excess of LDL in the bloodstream, it can lead to the accumulation of cholesterol in the arterial walls, contributing to the formation of plaque. This plaque buildup can narrow the arteries, impede blood flow, and eventually result in conditions such as atherosclerosis, heart attacks, or strokes.

Understanding the role of LDL in health is crucial because managing its levels through lifestyle changes and, if necessary, medication can significantly reduce cardiovascular risk. In contrast, HDL, known as "good" cholesterol, helps to transport cholesterol away from the arteries and back to the liver for excretion, which is why it has a protective effect against heart disease.