Despite material progress, human physical vigor and endurance are declining, which demands attention.

Original passage

Education in health principles was never more needed than now. Notwithstanding the wonderful progress in so many lines relating to the comforts and conveniences of life, even to sanitary matters and to the treatment of disease, the decline in physical vigor and power of endurance is alarming. It demands the attention of all who have at heart the well-being of their fellow men.