Cholesterol

Lipid Component of cellmembrane

Found in the diet –Eggs, dairy, liver

High levels lead to development of CHD

2 types of cholesterol-carrying proteins

Low-densityLipoproteins (LDL) - bad cholesterol

High-densityLipoproteins (HDL)- good cholesterol

LDL- carries up to 70%Blood cholesterol from liver to body cells

As level of LDL increase,Level of CHD increases

HDL- carries 20%Blood cholesterol

HDL- gathers Cholesterol for eliminartion

As level of HDLIncrease, risk of CHD decrease

• Risk of developing CHD may be predicted by measuring the ratio of HDL to LDL in the blood

• High ratio indicates HDL level in high and LDL low = healthy

• Low ratio= high LDL= unhealthy• Some evidence states that exercise can

increase HDL levels• A fingerprick test can measure plasma

cholesterol levels, but analysis of the HDL:LDL ratio must be done in a lab.