Does drinking alcohol help you pass a polygraph test?

Alcohol makes no difference when taking a polygraph test. According to the polygraph expert, alcohol equally lowers your physiological reactions to both truthful answers and lies. This means that while alcohol might make you feel more relaxed or confident, it doesn't provide any advantage in beating the test. The belief that having a few drinks before a polygraph helps you remain calm and appear truthful is simply a myth. Since the test measures relative differences in your responses, alcohol's dampening effect applies uniformly to all answers, preserving the same patterns that polygraph examiners look for when determining truthfulness.