Aerospace physiology is the study of how the human body responds to the unique conditions of flight and space travel. It examines factors such as changes in altitude, pressure, and gravity, which can affect physical and mental performance. Understanding these effects is crucial for the safety and effectiveness of pilots and astronauts. This field also explores the impact of radiation exposure and the need for proper nutrition and hydration in extreme environments. By studying these aspects, aerospace physiology helps develop training programs and safety protocols to ensure the well-being of individuals in the aerospace industry.