The document discusses World Heart Day 2023, which has the theme "Use Heart to Know Heart." The day aims to unite people worldwide in fighting heart disease and promoting heart-healthy lifestyles. Cardiovascular disease is the world's number one killer, responsible for over 20 million deaths annually. However, 80% of premature deaths from cardiovascular disease are preventable through lifestyle changes like diet, exercise, and stress management. The document outlines key risk factors for heart disease and provides 10 simple steps that individuals can take to maintain a healthy heart, such as eating well, exercising regularly, avoiding tobacco and excessive alcohol, and managing conditions like high blood pressure and cholesterol.