Overview
Cholesterol is a fat-like substance carried in the blood. Your body needs some cholesterol to make cells and hormones, but unhealthy levels can raise the risk of clogged arteries, heart attack, and stroke. Cholesterol management focuses on improving cholesterol levels and overall heart health over time.
Key Symptoms
High cholesterol usually does not cause noticeable symptoms. Many people feel well and do not know they have it until a blood test shows abnormal levels. Because it is often silent, routine checkups can be important.
Causes and Risk Factors
High cholesterol can be linked to eating patterns high in saturated or trans fats, low physical activity, excess body weight, and tobacco use. It can also be affected by age, family history, diabetes, kidney disease, thyroid disorders, and some medicines. Some people inherit conditions that cause very high cholesterol from a young age.
Who Is Affected
High cholesterol can affect adults of any age and can also occur in children and teenagers. Risk often increases with age, but younger people may also have unhealthy cholesterol levels, especially if there is a strong family history or other health conditions. It affects people in all regions of the world.
Prevention
Prevention may include eating more vegetables, fruits, beans, whole grains, nuts, and other foods rich in fiber. Regular physical activity, avoiding tobacco, limiting alcohol, and maintaining a healthy weight can also help. Managing conditions such as diabetes and high blood pressure supports heart health as well.
Diagnosis and Tests
Cholesterol is checked with a blood test often called a lipid panel or lipid profile. This test may measure total cholesterol, LDL cholesterol, HDL cholesterol, and triglycerides. A healthcare professional may also look at your age, blood pressure, smoking status, diabetes, family history, and other factors to estimate overall cardiovascular risk.
Treatment Categories
Treatment may include lifestyle changes such as improving diet, increasing physical activity, and stopping tobacco use. Some people are also advised to take cholesterol-lowering medicines, especially if they already have heart disease, have very high cholesterol, or have a higher overall risk of cardiovascular disease. Treatment plans should be individualized and reviewed regularly with a healthcare professional.
Diet and Lifestyle
Helpful habits often include choosing foods lower in saturated fat, avoiding trans fat where possible, and eating more fiber-rich foods. Physical activity can help improve cholesterol and support heart health. Small, steady changes are often easier to maintain than very strict short-term plans.
When to Seek Medical Care
Arrange medical care if you have never had your cholesterol checked and have risk factors such as diabetes, high blood pressure, tobacco use, obesity, kidney disease, or a family history of early heart disease. Seek advice if a blood test has shown high cholesterol or if you are having trouble following your treatment plan. Children or adults with a strong family history of very high cholesterol may also need evaluation.
When It May Be an Emergency
High cholesterol itself does not usually cause an emergency, but its complications can. Get urgent medical help right away for warning signs of heart attack or stroke, such as chest pain, trouble breathing, sudden weakness on one side, facial drooping, sudden confusion, or trouble speaking. These symptoms need immediate attention.