Coronary heart disease is a common type of heart disease that occurs when plaque builds up in the walls of the coronary arteries, which supply oxygen-rich blood to the heart. This buildup can restrict blood flow to the heart, leading to chest pain (angina), heart attacks, or other serious complications. Risk factors for coronary heart disease include high cholesterol, high blood pressure, smoking, obesity, and a sedentary lifestyle. Treatment options may include lifestyle changes, medications, and in severe cases, procedures such as angioplasty or bypass surgery. Research in this area focuses on understanding the causes of coronary heart disease, developing new treatments and prevention strategies, and improving outcomes for those affected by the condition.