The author explores the psychological bases of fatigue, where there is no organic trouble, and shows that if they are conquered, there is no need for rest cures. Fear, boredom, indecision, worry, other faulty emotions cause fatigue. Vitalizing emotions, and how to use them to counteract the others. The balanced life of work, avocations, social intercourse, physical welfare, and a spurring of self to action all release vital energies. A self-help book for the always tired. Case histories, etc.