What seems to happen, the researchers reckon, is that when a screech on a chalkboard is generated, the sound is amplified within our ears to painful effect.
The professor found as soon as we hear words like "tormenting", "gruelling" or "plaguing", the exact areas in the brain that deal with pain are activated。
For some people, the dread of writhing in the dentist's chair is sufficient grounds for avoiding candy. Leave it to the reckless sugar addicts and trick-or-treaters to put holes in their teeth.
And what a joyful thing it would be if a copy of a person could be made to over the problem of infertility which also releases those infertile couples from physically and emotionally pain.