The cardiovascular system ensures that muscles and bones receive oxygenated blood. Common procedures to evaluate heart health include stress testing, nuclear heart scans, and echocardiography. Stress testing monitors the heart's response to physical exertion to detect issues like coronary heart disease. Nuclear heart scans use radioactive tracers and cameras to capture heart images at rest and under stress to evaluate muscle damage, pumping ability, and blood flow. Echocardiography uses ultrasound to create moving pictures of the heart to examine valves, structure, muscle function, and blood clots. Regular checkups using these non-invasive procedures can help prevent dangerous heart issues.