Plain Facts for Old and Young by John Harvey Kellogg

1. _General debility_, coming upon a previously healthy child, marked

by emaciation, weakness, an unnatural paleness, colorless lips and gums, and the general symptoms of exhaustion, when it cannot be traced to any other legitimate cause, as internal disease, worms, grief, overwork, poor air or poor food, and when it is not speedily removed by change of air or appropriate remedial measures, may safely be attributed to solitary vice, no matter how far above natural suspicion the individual may be. Mistakes will be rare indeed when such a judgment is pronounced under the circumstances named.