Why do bright lights trigger sneezes?

14 June 2019
Presented by Chris Smith with Eusebius McKaiser, Talk Radio 702.

RUNNY-NOSE

A child with a runny nose and sneezing into a handkerchief

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Chris Smith from The Naked Scientists takes on YOUR questions with Eusebius McKasier from talk radio 702. Could gravity from my first-floor apartment impact my sleep patterm? Why do hearts beat faster when we're excited? What are the consequences of dental surgery? Is prejudice carried in DNA? How does a master-key work? Does exercise and breathing more oxygen increase the ageing process? Why do bright lights cause sneezes? Plus, the single use plastic that saved endangered snails in Bermuda.

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