Heart disease encompasses a range of conditions affecting the heart, including coronary artery disease, arrhythmias, heart failure, and structural defects. It remains one of the leading causes of death worldwide. Risk factors include high blood pressure, smoking, high cholesterol, diabetes, obesity, and a sedentary lifestyle. Early detection through imaging tests like echocardiograms, cardiac CT, calcium scoring, and stress tests can help prevent complications. Managing heart disease involves lifestyle changes, medications, and sometimes surgery. Modern diagnostics in Perth enable personalized, evidence-based care for heart disease, improving outcomes and enhancing long-term cardiovascular health.