Scientific studies have shown that in the first 3 years of life, children have achieved 80% of the brain cells needed for their entire life, especially in the first 30 days after birth, children have up to 80% of the brain cells compared to 3 months old.

Moro reflex (startle reflex): This reflex usually occurs when a baby is startled by a loud sound or sudden movement. In response to the sound, the baby may extend his arms and legs away from his body and cry, but then immediately pull his arms back as if hugging himself. Sometimes the baby's own crying can startle the baby and initiate this reflex.

Newborns sleep a lot in the first few weeks, often up to 16 to 17 hours a day. They sleep in short naps of 2 to 4 hours at a time. Sleeping too little or too much compared to the standard schedule is a worrying sign.

new study shows that nearly half of children in the United States do not get the recommended nine hours of sleep. Experts say sleep deprivation can affect children's ability to concentrate, learn, and have long-term health effects. Learn about the harmful effects of not getting enough sleep and how parents can gradually improve their children's sleep habits through the article below.