Personal experience, but I can only raise my left eyebrow on demand. Same with my upper lip. I cannot independently move those parts of the right side of my face no matter how I’ve tried. This has been true from childhood and I had no injuries I’m aware of that could have caused it.
So from my experience, I’d buy that there is a physical, possibly genetic component to whether it’s possible or not.
I also can only raise my left eyebrow, but I learned to do it as a teen. Maybe I just got lucky and found the right nerve to trigger and am now very aware of where it is.
Personal experience, but I can only raise my left eyebrow on demand. Same with my upper lip. I cannot independently move those parts of the right side of my face no matter how I’ve tried. This has been true from childhood and I had no injuries I’m aware of that could have caused it.
So from my experience, I’d buy that there is a physical, possibly genetic component to whether it’s possible or not.
It’s my right side upper lip for me.
I’m glad nobody is in the room with me. I’ve gotta look ridiculous.
¯\_(ツ)_/¯
Edit: he came into the room just as I hit send on this one :-P
I also can only raise my left eyebrow, but I learned to do it as a teen. Maybe I just got lucky and found the right nerve to trigger and am now very aware of where it is.