1 Screen use can bring harm

看屏幕久了，儿童大脑结构会改变？

A new study shows that using screens too much can affect (影响) how children’s brains grow. Researchers at Cincinnati Children’s Hospital, US, looked at brain scans (扫描) of children who are 3 to 5 years old. They found that children who used screens for more than one hour a day had lower levels (水平) of white matter (白质) in their brains. White matter is key to the development of language and reading skills.