November 1, 2015 23 min
Overview
What is the brain and how does it work? Mark arrives in the studio with a new part of pants, 'Smarty Pants' - he has bought them off the internet and claims that they will make him smarter. Lucy is exasperated and has to try and convince him it's load of old rubbish. Professor McTaggart claims that chewing gum is good for your brain.
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