The Jaw
Now take the chin between the thumb and forefinger and
move it up and down, at first slowly, then rapidly. If you have been
able completely to relax the hinge muscles of the jaw, this exercise
will give you no trouble.
On first trying it, most persons find, however, that there is resistance in the jaw, particularly when moving it back to a closed position. Involuntarily their jaw muscles are inclined to stiffen.
Not until you are able to move your chin freely up and down without the slightest resistance will you have accomplished the aim of this exercise.
Maintain all of the relaxation you have established up to this point. Do not permit concentration on one relaxing exercise to cause you to neglect the others.
Above all, take it easy.
