Childhood sickness often results from parental management errors such as irregular eating, inadequate clothing, insufficient exercise, or poor ventilation.

Original passage

In many cases the sickness of children can be traced to errors in management. Irregularities in eating, insufficient clothing in the chilly evening, lack of vigorous exercise to keep the blood in healthy circulation, or lack of abundance of air for its purification, may be the cause of the trouble. Let the parents study to find the causes of the sickness, and then remedy the wrong conditions as soon as possible.