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Naked Sci: 17 Mar 14 Fast food and contagious yawns
Dr Chris and the Naked Scientists look at contagious yawning (you either do or you don't), the hidden fast food peril on your route to work and what goes "Crash Bang Squelch"?
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5 Live Science Podcast
The hottest science news, stories and analysis from Dr Chris and the Naked Scientists.
