Watch the hilarious dynamic as boyfriend and girlfriend take on lie detector tests with LaurDIY and AlexWassabi.

The lie detector app is based on a similar computer ... he can usually be found enjoying a new world in a video game, or tinkering with something on his computer.

Hans Niemann recently lost to GM Daniil Dubov in a 18-game blitz match in Moscow. The Russian GM won with a 9.5-8.5 score, and the loser was supposed to answer a single question in a lie-detector ...

The notion that lying produces observable physical side effects has stuck with us, and one man thought he’d cracked the science of lie detection in the 1920s, amid a truly modern boom in crime.

The head of a federal agency was given a polygraph test after a news leak — even they're considered junk science.