Originally published in 1938 under the title Two Lifetimes in One. This is no miracle prescription -- ""take one-a-day-"" and accomplish twice as much. But an exploration of 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 are responsible. How to use vitalizing emotions, with a 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.