(CNN)-- American denialism threatens many areas of scientific progress, including the widespread fear of vaccines and ... the open-minded skepticism of science with the inflexible certainty ...

Sociologist Margee Kerr takes a tour of a giant “scream park” to break down the science behind its scares. She explains the benefits of fear and what may be behind our fear of clowns.

‘It’s a matter of thinking creatively about novel, different, unexpected types of set-ups’ says fear expert Mari Ramsawakh In BE AFRAID: The Science of Fear, a documentary from The Nature of ...