[dheera]

So what if you just did yoga or meditate while making huge pauses between the yes/no answers? That way you kill the stress and they can only ask each question once or twice before time is up. Letting them stress you is letting them win.

[ASalazarMX]

There are stories of people taking undetectable microdoses of tranquilizers to beat the polygraph. Think of it as the placebo effect countering pseudoscience.