It's very hard for these individuals to stand upright
naturally because their all of their extensor muscles have inhibited, causing a hunched over (
head down and
rounded shoulder) posture.
As soon as you solve the puzzle in your
head, you can be sure that an equally - matched player has too, so in that race to finish, many
rounds come down to a split second — because you knew you were so close to the win, you
naturally want to play again (and again, and again).