"To many parents, the infant's crying may be mainly in irritation, especially if it continues for long periods. But rying serves important functions for the child as well as for he parents. For the child, crying helps improve lung apacity and the respiratory system. Perhaps more mportant, the cry serves as a signal of distress. When abies cry, they indicate that they are hungry or in pain, nd this is important information for parents." opic: Main Idea:
"To many parents, the infant's crying may be mainly in irritation, especially if it continues for long periods. But rying serves important functions for the child as well as for he parents. For the child, crying helps improve lung apacity and the respiratory system. Perhaps more mportant, the cry serves as a signal of distress. When abies cry, they indicate that they are hungry or in pain, nd this is important information for parents." opic: Main Idea:
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