High cholesterol has no symptoms but can lead to serious health issues like heart disease and stroke. Over 33.5% of American adults have high cholesterol. Nutrition and lifestyle choices significantly impact cholesterol levels. Eating a heart-healthy diet low in unhealthy fats, exercising regularly, quitting smoking, losing excess weight, and drinking alcohol in moderation can all help lower cholesterol. Maintaining these lifestyle habits is important for reducing the risk of cardiovascular disease and other health conditions related to high cholesterol.