Try this next time you tee up the ball
Put the ball on the tee(always use a tee, always)
place the ball with the number of the ball exactly on top so that you can see it...
now you know enough to keep your head still don't you?
actually your head does move as you coil your arms around your body on the back swing....
but if you focus your right eye(for us lefty players) on the ball's number and keep that number in your sight line...
you will make better contact with the ball....
it works for me