Red alert: How the colour of your hair determines your pain threshold (and gingers have it worst than the rest)

If the theory is correct, famous ginger side-kicks like Harry Potter's Ron Weasley and Doctor Who's Amy Pond may have been suffering even more than they let on.

Source: http://www.dailymail.co.uk/health/article-2120036/Red-alert-How-colour-hair-determines-pain-threshold-gingers-worst-rest.html?ITO=1490

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