When someone types, they get friction between two things. Like keyboard and the mat or table. And that causes that area to go darker. Same reason, if you sit on your knees everyday, after so long, you will have dark knees. Same reason, why Muslim men have dark marks on their forehead, caused by the firction between the head and the prayer mat.
Is it one of those mouse pads with a gel wrist rest? I'm pretty sure that using that contributed to the slightly dodgy wrist I've got now - they might be relatively soft, but they still put a fair amount of pressure on the wrist.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.