The heart is a vital organ responsible for pumping blood throughout the human body, supplying oxygen and nutrients to all tissues. Heart diseases are among the leading causes of death worldwide and include conditions such as coronary artery disease, heart failure, arrhythmia, and congenital heart defects. These disorders can result from unhealthy lifestyles, poor diet, lack of physical activity, smoking, and stress. Early diagnosis, proper treatment, and preventive measures such as regular exercise, balanced nutrition, and avoidance of harmful habits can significantly reduce the risk of heart diseases. This article discusses the structure and function of the heart, common types of heart diseases, their causes, prevention, and treatment methods.

Heart, cardiovascular system, heart disease, coronary artery disease, heart failure, arrhythmia, prevention, risk factors, healthy lifestyle, blood circulation

World Health Organization (WHO)

Cardiovascular Diseases(CVDs):Key Facts,2024

Mayo Clinic.Heart Disease-Causes,

Symptoms, and Treatments,2023.

American Heart Association.

Prevention and Management of Heart Diseases,2024.

Oxford Medical Textbook of cardiology.4th Edition, Oxford University Press,2022.

National Heart, Lung, and Blood Institute.

Heart Health Guidelines,2023.