human
Is there a way to tell if a person is lying?
assistant
There are several ways to determine whether someone is telling the truth. One of them is called polygraph testing, which involves measuring physiological responses such as heart rate and breathing patterns. Another is called voice stress analysis, which measures changes in the pitch, tone, and volume of a person's voice when they are speaking. A third method is called body language analysis, which looks at how people move their bodies and faces while they are talking.