This document discusses heart disease in India. It notes that 25% of cardiac arrests in India occur in people under age 40, and over 60,000 children per year are affected by heart conditions. Women over 50 are also at high risk. Common causes of heart disease include coronary artery disease, high blood pressure, diabetes, smoking, alcohol, drugs, and stress. The document outlines several types of heart surgeries performed to treat heart conditions, including coronary artery bypass grafting, transmyocardial laser revascularization, and heart transplantation. It concludes with tips for maintaining a healthy heart such as quitting smoking, exercising, eating a heart-healthy diet, and managing conditions like diabetes and high blood pressure.