Re: Red hair color and pain
According to what I've read, the gene that causes red hair (MC1R), belongs to a group of receptors that include pain receptors in the brain. Redheads have a mutation in the gene melanocortin-1 receptor - that's what causes the red hair but also affects the pain receptors.
It also says that redheads are more prone to thermal pain (caused by heat or cold). Without a doubt, I experience MUCH more pain on cold days. My PM doc told me I should move to a warm climate (not happening, I have children in school).
I found it very interesting that there is a genetic cause for anthesia thresholds.