Also, IIRC from &quot;lying experts&quot;, there is no such thing as an objective lie. If you have no anxiety about the lie (I think I was reading about Lance Armstrong on this), or you don&#x27;t think you&#x27;re lying, you can easily pass a polygraph test.<p>You can habituate your brain to follow certain patterns even if you do know you&#x27;re lying. I suspect there will never be a &quot;magic lie detector&quot; with any reliability for people who understand what is happening or take preventative measures.