Mode of Awaking.--It is often valuable to know how patients awake. Sometimes it will be found that they are anxious and solicitous to be at work at a particular hour, or to catch a train at a particular time, and that as a consequence their sleep is disturbed in the early morning hours. At best it may be fitful and when they awake they fear to go to sleep again lest they oversleep. An alarm clock will sometimes remedy this state of affairs. Better still is an arrangement by which someone, who can be depended on, will wake them at a particular time. Occasionally patients cannot content themselves in spite of the assurance that they will be waked. They dread that the alarm clock may not go off, or that the awakener may make a mistake, and so they go to bed with a dominant idea, which is more or less constantly present in their mind during all their sleeping hours, disturbing sleep and preventing complete rest. It may be necessary to insist on a change of occupation for such persons, or a change of residence that will do away with the necessity for early rising. When this is done, many a neurotic condition that has before proved intractable will disappear. Amount of Sleep.--It is of cardinal importance to know how long patients sleep. In our large cities most people have too little sleep. A comparison of the hours when they get to bed with those when they get up will often show that at least three or four nights in the week some patients who are complaining of nervous symptoms, especially nervous indigestion, are {166} sleeping less than seven hours. There are but few men, and still fewer women, who will retain their health under such conditions. Some men have been able to do it, but they are comparatively rare. King Alfred's rule of dividing the day into three eight-hour periods--one for sleep, one for work, and the third for bodily necessities and recreation, still remains the best for human nature. Whenever people try to live the strenuous life and get along on less than eight hours of sleep, they are almost sure, sooner or later, to render themselves uncomfortable, to make themselves liable to all sorts of neurotic symptoms and, above all, to detract from their efficiency for whatever work they are engaged in. Whether they sleep or not, they should be in bed for nearly eight hours.