Redheads are often thought to be quick-tempered and able to handle more pain than others. While there isn't scientific proof of the quick temper, recent research suggests there might be some truth to their higher pain tolerance. Scientists at Massachusetts General Hospital (MGH) have discovered why people with red hair
TTBOMK, it was simply recording how much local-anaesthetic was required, per patient, to get them OK with the work,
& there was a 10% consistently higher requirement among the redheads…
That’s evidence, not theory.
Which is why I don’t accept the article’s idea.
( & I admire the elegance of the experiment, too : )