It makes sense for actors to do that type of thing, or maybe martial artists seeking to discipline every part of their body, but the time needed is too high for

It makes sense for actors to do that type of thing, or maybe martial artists seeking to discipline every part of their body, but the time needed is too high for what's mostly a party trick for regular people. Then again, maybe it gets easier with other muscles as you practice and master more things - could it help overall coordination, maybe improve typing speed or balance?