This alternate movement will bring great relief. The muscles are more or less opposed; at any rate, the activity concerned in each exercise will receive a rest during the other action. This, of course, uses rhythm as an aid. True, natural rhythm is always helpful and should be introduced whenever possible. 17. ROTARY ACTION OF THE FEET With the heels resting upon the bed carry the balls of the feet in the widest possible circle. This exercise may be omitted, but it is very important for one who is lacking in freedom in the feet or who suffers from cold feet. It also brings into action the lower extremities and tends to further equalize the circulation. 18. MOBILITY OF THE FACE Rest a moment and feel a sense of satisfaction and then smile and place both hands upon the face, covering it as far as possible and knead the muscles, so as to eliminate every constriction and allow the diffusion of the smile to go into every part. Do not laugh at this exercise but observe the effect. This exercise, however, should be practiced in union with the smile. Pay especial attention to any part of the face where there are constrictions or tendencies to constriction, and especially any part that may seem to droop. Where there has been a good deal of suffering or whining, or both, certain parts of the face, especially the corners of the mouth, are turned downward. This habitual action causes the muscles that lift the corners of the mouth to become too long while the corresponding muscles that draw the mouth down become abnormally short. Kneading is, primarily, to give extension to the muscles that have become too short, and the laughter at the same time is to give exercise to the muscles that have become too extended or elongated. All parts of the face will be brought into proportion. Crows' feet will be eliminated and the beauty and expression of the countenance greatly increased. Where there seems to be no muscle between the skin and bone, as sometimes in the forehead, there must be manipulation, exercise of the weak muscles. In the case of the face we have to bring in so-called secondary motions. We have to use the hands in the way indicated to get any effect. Of course, the effect will be temporary unless the disposition is changed. The mental and emotional actions are always the primary cause, but frequently the condition of the muscles has become such that it will take a long time to effect a change. The exercises, accordingly, are a wonderful help. If one-tenth of the power of this exercise to help the countenance were realized, it would not be neglected.