Encyclopedia Of Diet

That man's general health and period of longevity have decreased while all other branches of science have so vastly increased is evidence sufficient to justify the assertion that he has not employed scientific methods to the art of living or at least to those fundamental principles such as nutrition motion and oxidation which really govern his health and his life.The difference between youth and age between virility and senility is in reality a chemical difference only. The difference between the flexible cartilage of youth and the stiff cartilage of age is one of chemistry.If by the process of metabolism the muscles bones tissues and brain-cells can be made to multiply and to reproduce themselves at eighteen it seems only logical that science should give us the secret by which this same thing could be done at eighty and if at eighty why not at a hundred and eighty? It is by no means extravagant to say that if science can teach us the actual demands of the body under the varied conditions of age climate and activity and the means of supplying these demands with only such food elements as are needed life can be prolonged to what seems to be our natural period of years.