Baby: Infant – Newborn – Toddler
How baby behavior changes by age

How baby behavior changes by age

Newborn to 1 month: reflexes, regulation, and survival cues In the first weeks, behavior is dominated by physiologic regulation. Newborns cycle through feeding, sleeping, brief alert periods, crying, and recovery. Their nervous system is immature, so they cannot reliably calm themselves, stay awake for long, or coordinate attention for extended interaction. Much of what caregivers […]

Normal baby behavior first year explained

Normal baby behavior first year explained

The first weeks: adaptation outside the womb In the newborn period, behavior is strongly shaped by physiologic transition. Babies are learning to regulate temperature, glucose, feeding, digestion, sleep-wake states, and sensory input. Many newborns seem to move between only a few states: deep sleep, active sleep, drowsiness, quiet alertness, fussing, and crying. This can look […]