Physical function refers to the ability of an individual to perform daily activities and tasks that require movement and coordination. This includes basic actions such as walking, climbing stairs, and lifting objects, as well as more complex activities like running or playing sports. Good physical function is essential for maintaining independence and overall quality of life. Factors that influence physical function include age, fitness level, and any existing health conditions. Regular exercise, proper nutrition, and rehabilitation can help improve or maintain physical function. Assessing physical function often involves tests that measure strength, flexibility, and endurance, which are crucial for activities of daily living.