INTRODUCTION 13 



principle of the conservation of energy in the human 

 body is of immediate and practical benefit. That 

 faith in a final outcome for good can control and 

 may even prevent the occurrence of many abnormal 

 states which border closely on disease, we have abun- 

 dant proof. That it can be utilized to a far greater 

 extent than is now realized is the indication of our 

 findings in the laboratory and in the clinic. To what 

 extent it may be utilized scientifically depends upon 

 the disclosures of further research. Perhaps an indul- 

 gent hearing may be invoked for the author's belief 

 that the individual who accepts the theory of the 

 conservation of energy in the Kinetic System can and 

 undoubtedly will do much to stem the tide of harmful 

 activities now draining his energies to no purpose; 

 and that with this clearer understanding he will be 

 able to construct for himself a plan of life more con- 

 ducive to longevity and happiness than his present 

 blind yielding to environmental coercion. 



It is with the desire of increasing the scope of pre- 

 ventive medicine ; with the hope of relieving and even 

 of curing certain acute and chronic diseases and of 

 stimulating a biologic trend of thought in medicine to 

 the end that disease like health may be given its evolu- 

 tionary setting, that this volume is offered. 



