What is the definition or description of: cholesterol?

Fat : Cholesterol is a measure of fat produced by the body by genetics as well as by diet. Your total cholesterol measures the triglycerides (increases with high sugary foods and baked goods, helped with fish oil), HDL (your good cholesterol-difficult to increase but helped with exercise, hormone replacement, niacin) and LDL (your bad cholesterol, decrease this w/ lean protein, more veggies, less sugar.

LDL, not Cholesterol: Cholesterol is a fat molecule manufactured by every animal cell, a building block of each cell membrane (enables membrane fluidity/movement without tearing), is fundamental to the survival of every animal cell. Lipoproteins (proteins which transport all fats in the water outside cells) is the correct issue for artery disease (e.g. Ldl ≤700 nmol/l, HDL ≥45 µmol/l). Cholesterol ↓$, but misleading.