Polygraph India

 The idea of catching lies has always fascinated humans, from ancient rituals involving hot irons to modern science with sophisticated devices. Today, the polygraph test , commonly known as a lie detector in India , is widely used in law enforcement, corporate investigations, and even personal disputes. But how does this device actually work? To understand that, we need to dive into the world of physiological responses  the involuntary changes in the body that reveal more than words ever could. What Is a Polygraph Test? A polygraph test is a scientific process that measures and records several physiological signals while a person answers questions. These include: Heart rate and blood pressure – indicating stress or anxiety. Respiration rate – measuring changes in breathing patterns. Electrodermal activity (sweating) – skin conductivity that spikes under stress. The premise is simple: when people lie, their bodies often react involuntarily. The polygraph record...