A new study has uncovered why gently rubbing a baby’s back is so effective at calming them. Researchers found that back stroking reduced infants’ movements more effectively than touching the head or belly. In newborn mice, it also slowed the heart rate, reduced stress hormones, and helped them fall asleep faster. Surprisingly, the calming response developed only in pups that received normal maternal care, suggesting it is learned through early nurturing rather than being present at birth. The findings highlight how simple caregiver touch can shape brain development and stress regulation, offering new insights into infant care and emotional well-being.
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