"People form habits which cause nervous strain. When these habits have fixed themselves for long enoughWhen enough upon their victims the nerves give way and severeupon severe depression or some other form of nervous prostration isdepression is the result. If such an illness turns the attention to its cause and so starts the sufferer toward a radical change fromand from habits which cause nervous strain to habits which bringhabits bring nervous strength then the illness can be the beginning ofnervous of better and permanent health. If however there simply isbetter is an enforced rest without any intelligent understandingan understanding of the trouble the invalid gets "well" only to drag out aof a miserable existence or to get very ill again."