An annual walk-in physical exam is an essential part of preventive healthcare. It allows your healthcare provider to check for conditions and diseases before they become severe and detect changes in your overall health. What Is a Normal Cholesterol Level Normal cholesterol levels should fall below 150 mg/dL, with an LDL (bad) cholesterol level lower than 100 mg/dL and an HDL (good) cholesterol level of at least 40 mg/dL in men and ...