How can an innocent person fail a lie detector test?
Md Ariful Islam
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এমবিএ(মার্কেটিং)
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Dr. Md Rushad Rahman
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পিজিটি(মেডিসিন)
The lie detector test goes off of a person's heart rate. If someone is nervous or excited during the test, their heart rate might be faster, thus causing them to fail.
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