The death rate, also known as the mortality rate, measures the frequency of deaths within a specific population over a defined period, typically expressed as the number of deaths per 1,000 or 100,000 individuals annually. It is a fundamental demographic indicator that helps assess population health, socioeconomic conditions, and the effectiveness of public health interventions. Various factors influence the death rate, including access to healthcare, nutrition, socioeconomic status, environmental quality, and lifestyle habits. Developed nations often report lower death rates due to advanced healthcare systems, higher standards of living, and effective disease prevention programs. Conversely, developing countries may face higher death rates due to limited healthcare access, infectious diseases, malnutrition, and lower living standards. By analyzing death rate trends, researchers can identify health disparities, evaluate the impact of policy changes, and guide interventions to improve life expectancy and quality of life across different populations.