Science Marches On !

Swearing as a response to pain
Richard Stephens, John Atkins, and Andrew Kingston.

Neuroreport 20 (12), 2009.

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So the Pain Scale no longer starts at 1 and goes to 10;

it now climbs from curses that are Genealogical, then Scatological, then Sexual,

with the highest pain level represented by an oath using a Genealogical/Sexual combination