2026 PISD Personal Fitness CBE Complete Practice Test

LDL is described as bad cholesterol because it carries cholesterol from the liver to cells and, when levels are high, can deposit that cholesterol into the walls of arteries. This buildup forms plaque, narrowing and stiffening arteries and increasing the risk of heart attack or stroke. That harmful potential is why LDL is labeled as bad cholesterol. In contrast, HDL is known as good cholesterol because it helps remove cholesterol from arteries by transporting it back to the liver for disposal. Triglycerides are a different type of fat in the blood, not a cholesterol type, so they’re not described as a form of cholesterol.