THE CRY

_When is crying useful?_

In the newly born infant the cry expands the lungs, and it is
necessary that it should be repeated for a few minutes every day in
order to keep them well expanded.

_How much crying is normal for a very young baby?_

From fifteen to thirty minutes a day is not too much.

_What is the nature of this cry?_

It is loud and strong. Infants get red in the face with it; in fact,
it is a scream. This is necessary for health. It is the baby's
exercise.

_When is a cry abnormal?_

When it is too long or too frequent. The abnormal cry is rarely
strong, often it is a moaning or a worrying cry, sometimes only a
feeble whine.

_What are the causes of such crying?_

Pain, temper, hunger, illness, and habit.