With their first World Series win since 1908, Cubs fans are celebrating the demise of a curse on their team — but what's the psychology behind the belief?

A psychological phenomenon is likely to blame for several recent incidents in which people mysteriously fell ill.

They seem to be everywhere these days. But where do zombies come from?

People love to speculate about what body language means — but how valid is the analysis?

From yesterday's Biblical prophecy to tonight's "Black Moon," why do people keep predicting the end of the world?

A new photograph claimed to be of Nessie is making waves -- but is it a monster?

Mysterious lights in the sky come in many forms ... but what causes them?

Creepy clowns have recently been reported luring children into the woods behind a block of apartments. But are they just a hoax?

Celebrated Olympian Ryan Lochte's claim of being robbed at gunpoint fits a pattern of false reports.

Two recent reports of creepy clowns have circulated on social media -- and more are on the way.

News headlines across the country suggest that flossing is worthless, but that's not the whole story.

Vaccination is widely accepted in medicine but remains controversial in presidential politics. Here's why.