Various factors contribute to maintaining a healthy cholesterol level, including diet, exercise, and genetics. A balanced diet low in saturated and trans fats, combined with regular physical activity, can improve cholesterol profiles. Foods high in soluble fiber, such as oats and beans, help lower LDL cholesterol (the "bad" cholesterol). Regular exercise increases HDL cholesterol (the "good" cholesterol), which helps clear LDL from the bloodstream. Additionally, avoiding smoking and managing stress are crucial for supporting healthy cholesterol levels and overall heart health.