The treatment of true _angina_ depends to some extent on inspiring the patient with courage, for it is needed to carry him through the very serious condition to which he is subjected. The psychic element is important, though the drug treatment by the nitrites and especially amyl nitrite is often very effective. In spurious _angina_, the will is the all-important element. There is some irritation of the heart muscle but it is mainly fright that exaggerates the pain and then concentration of attention on it makes it seem very serious. The one thing that is all important is to relieve patients from the solicitude which comes upon them with regard to their hearts and which prevents them from suppressing their feelings and diverting their minds to other things. Sometimes the will is needed to bring about such a change in the habits of the individual as will furnish proper nutrition for the heart. Very often these patients are under weight, not infrequently they have been staying a great deal in the house, and both of these bad habits of living need to be corrected. Good habits of eating and exercise are above all important for the relief of the condition. For functional heart trouble, gentle exercise {233} in the open air generally must be taken, for it acts as a tonic stimulant to the heart muscle. Almost as a rule, when patients suffer from symptoms from their hearts, they are inclined to consider them a signal that they must rest and above all must not exercise to such an extent as to make the heart go faster. Rest, if indulged in to too great an extent, has a very unfavorable effect upon the heart, for the heart, like all muscles, needs exercise to keep it in good condition. One of the most important developments of heart therapeutics in our generation was the Nauheim treatment. In this, exercise is an important feature. The exercise is graduated and is pushed so as to make a definite call upon the heart's muscular power. Nauheim is situated in a little cup-shaped valley and patients are directed to walk a certain distance on one of the various roads, distances being marked by signposts every quarter of a mile or so. The walk outward, when the patient is fresh, is slightly uphill, and the return home is always downhill, which saves the patient from any undue strain.