High cholesterol, or hyperlipidemia, is a medical condition characterized by an elevated level of cholesterol in the bloodstream. Cholesterol is a waxy, fat-like substance that’s essential for building healthy cells, but too much of it can lead to serious health issues, including heart disease and stroke. Cholesterol is carried through the blood by lipoproteins, with two main types being low-density lipoprotein (LDL) and high-density lipoprotein (HDL). LDL, often referred to as "bad" cholesterol, can lead to the buildup of plaque in the arteries, while HDL, known as "good" cholesterol, helps carry cholesterol away from the arteries and back to the liver.
Factors contributing to high cholesterol can include poor diet, lack of exercise, obesity, smoking, and genetic predisposition. Regular health screenings are crucial, as high cholesterol often presents no overt symptoms. Maintaining a heart-healthy diet rich in fruits, vegetables, whole grains, and healthy fats, coupled with regular physical activity and avoiding tobacco, can help manage cholesterol levels effectively. In some cases, medications may be necessary to control high cholesterol, so consulting with a healthcare provider is key for tailored advice.