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Why can't you tickle yourself?

Is it the element of surprise?
20 June 2025
Presented by Chris Smith with Clarence Ford, 567 CapeTalk. 

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Child laughing heartily
Credit: 
CC0, S&B Vonlanthen, via Unsplash
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Dr Chris answers listener questions including: what is the Higgs boson? How should I change my lifestyle to prevent diabetes? Why can you pass on yawns? Why does nerve pain/sciatica get worse when we're tired?

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