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A polygraph test (commonly known as a lie-detector test) is used to
determine if someone is telling the truth or not. It measures physiological
responses such as blood pressure, heart rate, and breathing rate of the
person being tested. Do you think polygraph tests are a reliable source of
information? Do you think it is possible to beat a polygraph test? If so, how? Try to write a full paragraph which is 5-7 sentences.

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