Children's intelligence can not be changed by nature, but can be cultivated. Parents can further develop their children's brains by training their children to crawl, turn over, sit, stand and walk, and by training their children's hand flexibility, their sensory perception, cognitive ability, life ability and social communication ability. In addition, parents should pay more attention to providing an inspiring and emotional environment for their children. When children can't talk, talk to them more and exchange feelings. Let children listen to music, dialogues, children's songs, stories, etc. And teach children to make simple sounds in entertainment until they are taught simple words and sentences. Conditional parents can also take their children to the early education center. Systematic training in the early education center is also of great help to children's intellectual development. I hope my answer can help you!