Physiological testing refers to a range of assessments designed to measure the body's functions and responses. These tests can evaluate various systems, including the cardiovascular, respiratory, and muscular systems. Common methods include blood pressure measurements, lung function tests, and exercise stress tests, which help determine how well the body performs under different conditions. The results from physiological testing can provide valuable insights into an individual's health status and fitness levels. They are often used in clinical settings to diagnose medical conditions, monitor disease progression, or assess the effectiveness of treatments. Additionally, athletes may undergo these tests to optimize their training and performance.