Doctor explains how psychopaths can so easily get away with lying

If you're wondering what mechanism inside the mind of a psychopath allows them to fool everyone around them - and even a lie detector test - this psychologist's TikTok video is going to break it down for you.

You can view the mind blowing - and mind revealing - video below:

She explains that research on psychopaths or 'antisocial personality disorder' shows that these are people who have 'slightly different' autonomic nervous systems compared to regular people.

The autonomic nervous system is the part that holds the sympathetic nervous system, which is our 'fight or flight' system.

When a normal person gets 'charged up' - from breaking a rule, doing something embarrassing or rude - their heart rate will naturally spike.

However, here's where the difference kicks in: "A psychopath doesn't have that same kind of arousal," she explains. "That's why they're able to lie on lie detector tests - that's how they get away with it."

They don't have that. She continues: "They don't feel remorse when they do something bad."

When asked by her interviewer whether they get stressed at all, she answers: "No. Not in the same way," with an emphatic nod of the head.

She adds: "But they're not happy about it."

She concludes: "Psychopaths and to some degree sociopaths don't think about consequences."

The minds of the comment section were blown by this information.

One person said: "At least I know I'm not a psychopath. My anxiety goes through the roof if I simply forget something."

Another quipped: "Oh to be born without stress."

A third summed it up: "They don't get stressed by consequences, they get annoyed by them. To them, consequences are merely an inconvenience."

One more confirmed: "Must be nice."