Mortality, or death, is the end of life for all living organisms. It is a natural process that occurs when an organism's biological functions cease, leading to the permanent loss of consciousness and bodily functions. Mortality can result from various factors, including age, disease, accidents, and environmental conditions. Understanding mortality is essential in fields like medicine, biology, and psychology. It influences how societies view life and death, shaping cultural practices and beliefs. The study of mortality rates helps researchers and policymakers address public health issues and improve quality of life for populations, particularly in relation to disease prevention and healthcare access.