I've had them since my late teens. Mine haven't really progressed at all, but I have noticed that they seem to fluctuate a bit depending upon my hydration level

I've had them since my late teens. Mine haven't really progressed at all, but I have noticed that they seem to fluctuate a bit depending upon my hydration level. I see more if I'm dehydrated and they seem to decrease drastically if I really focus on hydration for a few days (1 gallon or more per day of water).