Coronary artery disease and aortic valve stenosis are highly prevalent cardiovascular diseases worldwide, resulting in substantial morbidity and mortality. Surgical interventions, such as coronary artery bypass grafting and surgical aortic valve replacement, offer significant therapeutic benefits, including enhanced postoperative quality of life (QoL) and functional capacity, which are key indicators of surgical success. This editorial reviews recent studies on postoperative QoL and functional outcomes in patients undergoing cardiac surgery. Factors such as preoperative health, age, intensive care unit stay duration, surgical risk, and perioperative complications could influence these outcomes. Cardiac rehabilitation is pivotal in enhancing patient function, reducing frailty and improving long-term QoL.