Very rarely I find a patient to whom all massage is so disagreeable or produces such annoying nervousness as to make manipulation impossible; sometimes, though very rarely, massage, especially frictional movements, causes sexual excitement when applied in the neighborhood of the genital organs, or even on the buttocks and lower spine, and this may occur in either sane or insane patients: if the rubber observe any signs of this, it will of course be best to avoid handling the areas which are thus sensitive. Another complaint sometimes made is of chilliness after treatment, and especially of cold feet. If this is not lessened after a few days, the lower extremities may be rubbed last instead of first, or as is now and then useful, the whole order of massage may be changed so as to begin with the abdomen, chest, and upper extremities and conclude with the back and legs.[17] Beginning with half an hour and gradually increasing to about an hour (a little more for very large or very fat people,--a little less for the small or thin) the daily massage is kept up through at least six weeks, and then if everything seems to be going along well, I direct the rubber or nurse to spend half of the hour in exercising the limbs as a preparation for walking. This is done after the Swedish plan, by making very slowly passive and extreme extensions and flexions of the limbs for a few days, then assisted movements, next active unassisted movements, and last active movements gently resisted by nurse or masseuse. When the patient is able to sit and stand, it is well to keep up and extend the number of these gentle gymnastic acts and to encourage the patient to make them habitual, or at least to keep them up for many months after the conclusion of treatment.[18] At the seventh week massage is used on alternate days, and is commonly laid aside when the patient gets up and begins to move about.