Not only on the basis of the psychological theory of the stupor process, but from the observed phenomena of recovery, we gather that mental stimulation is of first importance if an amelioration of the condition is to be attempted. If the stupor reaction be a regression, which is essentially a withdrawal of interest and energy rather than a fixation on a false object, then excitement is desirable and interest must be reawakened. The withdrawal is temporary (inasmuch as the psychosis is benign), but just as a normal person wakes more readily on a clear sunshiny day than when it rains, so the more cheering the environment the more rapid the recovery. Consequently, although trying to those in charge, persistent attention should be given the patient. Feeding and hygienic measures probably have considerable value in this work. As soon as it is at all possible the patients should be got out of bed and dressed. When up, efforts should be directed towards making them do something, even if it be something as simple as pushing a floor polisher. On account of their lack of enthusiasm the stupor cases are often omitted from the list of those given occupation and amusement. Even if they go through the motions of work or play with no sign of interest, such exercise should not be allowed to lapse. Then, too, the environment should be changed when practicable. A patient may improve on being moved to another building. Perhaps the most potent stimulus that we have observed is that of family visits. In most manic-depressive psychoses visits of relations have a bad effect. The patients become excited, treat the visitors rudely, perhaps even assault them, and all their symptoms are aggravated. But the stupor needs excitement, and an habitual emotional interest is more apt to arouse him than an artificial one. In another point the situation differs. As a rule manic-depressive patients have delusional ideas or attitudes in connection with their nearest of kin, so that contact with these stirs up the trouble. The stupor regression going beneath the level of such attachments leaves family relationships relatively undisturbed. Hence, while the visit of a husband is likely to produce nothing but vituperation or blows from a manic wife, the stuporous woman may greet him affectionately and regain thereby some contact with the world.