Pay attention to the diet and health care in the fetal period. When the baby is about five weeks old, this is the first golden age of the child's intellectual development. The organs of the body are gradually maturing. As parents, it is necessary to strengthen conditioning, which will help children improve their intelligence. Brain development is influenced by many factors. Parents should avoid unfavorable factors, create a good living environment for their children on the basis of eugenics, and give rich environmental stimuli, good education and adequate nutrition, so that the brain can develop healthily.

He can perceive things around him and begin to react to them. He began to observe the environment and react. When the baby is eight weeks old, the baby will have a deeper understanding of the surrounding environment. He will find that his environment is constantly changing.

Children are afraid when they can't see their familiar environment. Mothers need to hold their children as much as possible and let them spend this strange and terrible time in their mothers' arms. Babies begin to move frequently and know how to control their bodies better. He can stretch his arms and move his legs. During this time, babies will be very interested in their bodies. He found that he could also communicate with others. He will laugh at his mother, and when she responds to him, he will laugh more happily. His mouth will also emit some vague syllables, which is learning to speak.

Baby 19 weeks into the exploration period. The baby will catch things at this time. He seems to have to explore everything around him. Parents should be careful. Baby bear especially likes to put all kinds of things into his mouth to explore. By this time, the baby has grown up. He knows that some things can be put far away, in front of him, here or there. He has a similar causal relationship. As long as she presses the doll's button, the doll will sing. At 37 weeks, babies can think logically like adults.