Aging is a natural process that occurs in all living organisms, characterized by gradual changes in physical and mental functions over time. As people age, their bodies may experience a decline in strength, flexibility, and cognitive abilities. This process is influenced by genetic factors, lifestyle choices, and environmental conditions. Death is the final stage of life, marking the end of biological functions that sustain an organism. It can result from various causes, including illness, accidents, or old age. Understanding aging and death is important for appreciating the life cycle and the inevitability of these experiences for all living beings, including humans.