Article: Health Zone: Yawning is far from boring..; Ever wondered what causes us to yawn, hiccup, shiver and blush? CHRISTINE MORGAN has the lowdown on those everyday involuntary actions that we all do - often without even thinking about it...(Features)

Byline: CHRISTINE MORGAN

SETH Dowell, a 21-year-old American, is famous because he's had hiccups non-stop for almost a year (although the record is held by a pig farmer who hiccuped from 1922 to 1987).

Hiccups are just one type of involuntary, or automatic, bodily function that affect us all. But do you ever wonder why we hiccup, blush, yawn and shiver?

What are hiccups?

They are spasms of the ...

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