What's the deal with lie detectors? Can you really fool them? The key is to flex your muscles. Well, one muscle at least. Er, maybe you don't want to know more... but if you do, NPR's Emily "The Human Guinea Pig" Yoffe has all the sordid details.
Damn Interesting also has the skinny on sodium pentothal a/k/a Truth Serum.
Technorati tags: lie detectors, sodium pentothal, truth serum
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