Ask The Naked Scientists

Ask the Naked Scientists SA episode

Fri, 10th May 2013

What is Sleep Walking?

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Does cold exposure cause colds? What consitutes safe drinking water? Why do distant lights and stars flicker? What is sleep walking? What causes bipolar disorder? How does sound travel in air? Plus, news of a vaccine to help crack heroin addiction. Join Dr Chris for more top science questions from South Africa...

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