`  == Confusing ==  ``Turn your head 90 degree to the other side... Roll your body onto your side in the direction you are facing, now you are pointing your head nose down``.  As I read this, the former means turn your head 90 degrees towards the other side, i.e. leaving it still 45 degrees away from the vertical but on the other side to what it was. But the latter can only leave your head nose down if it was turned 135 degrees towards the other side, i.e. horizontally (90 degrees away from the vertical) on the other side. So just what is meant here, and how could the language be made clearer? P.M.Lawrence.`