'Truth serum' drugs do exist. Here's how medicines like sodium pentothal and scopolamine can manipulate the brain.

"Truth serum" comes in several forms, including sodium pentothal. Find out how the drugs work to make it more difficult — but not impossible — to lie.
Read more: https://www.businessinsider.com/is-there-such-a-thing-as-truth-serum-2014-10?source=Snapzu