Regardless of their gestational age, all newborns experience the same pattern that includes
First period of reactivity
• Period of decreased responsiveness
• Second period of reactivity
- Usually, the first phase of reactivity lasts six to eight hours. The newborn is often quite aware and active for the first 30 minutes following birth. This is normally a great time to start breastfeeding because the baby will typically have a strong suck reflex throughout this period.
- The newborn will enter a deep sleep after this initial period of wakefulness called Period of decreased responsiveness , which typically lasts between two and four hours, though it may last much longer. The infant is very peaceful during this time. In general, attempts to arouse the newborn will fail.
- When the newborn awakens from this deep sleep state, the second period of reactivity, which typically lasts two to five hours, starts. The infant is once again normally highly attentive and demonstrating signs of hunger.
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