Why do babies have sharp heads?

summary

The baby has been three months, looking at the heart every day will sprout, and many people have some understanding of its basic treatment methods, especially when the baby is sleeping, he laughs from time to time. It's so lovely that he likes to watch the baby sleep. Hee hee. In order to avoid this situation, let's talk about why babies have sharp heads?.

Why do babies have sharp heads?

First: the brain is not yet fully developed, the baby's nervous system and brain are not fully developed, so the sleep cycle can be divided into deep and shallow, and when the baby is in shallow sleep, there will be a variety of facial expressions, and even sound. But don't worry, such a light sleep does not affect the development of the baby, but will help the growth of the baby.

Second: dreaming. During this period, babies spend most of their time in sleep. Adults only dream in REM sleep, while babies spend 50% of their sleep time on REM, which is twice that of adults. But babies' dreams are basically related to their brain activity. Maybe the baby is too excited and happy during the day after birth, and has a dream at night. When it comes to funny things, it laughs.

Third: when will the baby laugh? In fact, after the baby is born, generally to the first 10 ~ 20 days or earlier will smile, to about three months will make a sound smile. But at the beginning of the smile, most of the baby is unconscious smile, about to 3 months, the baby will have the ability to distinguish, familiar with other things, only need to meet, will laugh.

matters needing attention

Before the baby is one year old, if he "meets" more people around him and makes them "tease" more, he will laugh more. Amuse the baby to smile may develop the baby brain, how amuses the baby to be happy? It's up to you!