Physiological data refers to information collected from the body that reflects the functioning of physiological systems, such as heart rate, blood pressure, temperature, and electrical activity of muscles. This data is commonly obtained through sensors or devices that monitor these bodily functions in real-time. Physiological data is often used in research to study human health, performance, and behavior, as well as to track changes or abnormalities in the body over time. This data can provide valuable insights into the physical state and well-being of individuals and is used in a wide range of fields, including sports science, medicine, psychology, and bioengineering.