Human: My doctor says that my cholesterol is high, and I'd like to learn more about the causes and treatment options. Assistant: 
Cholesterol is a fat-like substance found in your bloodstream that helps your body make hormones and other important compounds. High cholesterol can increase your risk of heart disease, stroke, and other health problems. There are many different factors that contribute to high cholesterol, including genetics, diet, lifestyle habits, and certain medications. To reduce your cholesterol levels, it's important to maintain a healthy diet, exercise regularly, and talk to your doctor about any medications you're taking.