Polygraph Testing measures physiological responses such as heart rate, blood pressure, and skin conductivity to determine if someone is being truthful. During Polygraph Testing , a subject is asked a series of questions, and the examiner observes the physical reactions to these questions. The premise of Polygraph Testing is that deceptive answers will provoke distinct physiological responses. Although Polygraph Testing is a widely used tool in security and law enforcement, its accuracy and reliability are sometimes questioned by experts. Despite this, Polygraph Testing continues to be a significant method for verifying truth in various professional and personal scenarios.