Beard Significantly More Grey on One Side of Face

[beardweird]

I'm 45 years old and I'm starting to grow a beard for the first time. I always knew that the right side of my face had more grey hair than my left. However, now that I am growing the hair out, I notice how different the two sides are.

The left side is pretty uniform, with dark black hair. There are little to no grey hair on that side. The right side is unruly and curly with almost all of the hair grey. I brush the beard several times a day and I use beard oil at least four times a week to keep the beard moisturized. I do not use beard shampoo, yet.

In doing some research, I've read about potential conditions I may have, or that this may simply be genetic. However, one theory that I cannot shake is that the hair on the right side of my face is like this because I sleep on my right side. Is that a thing? If I started sleeping on my left side, would the hair on the right side of my face grow more similarly to the left side, or will the left side start to become grey and unruly?

[GuitarRox]

I think that is a myth.  Grey hair starts deep in the hair root and is due to cells there or probably more accurately, lack of them. melanocytes give hair pigment and they can stop doing their job and hair turns white.  This happens far too deep for any type of sleeping issue to be to blame.  Indeed, genetic. Unfortunately some people are just not really meant to have a good looking beard or mustache.  My buddy has dark almost black hair and his mustache comes in blondish red.  Not a good look.  If yours looks okay, keep grooming it and go with it.  But I do not think you can manipulate the look on one side by changing sleeping patterns.