Neuroscientists' research indicates that Generation Z has become the first generation with lower intelligence than their millennial predecessors. The main reason is excessive screen time and use of electronic devices. I was aware of this problem before and consciously tried to avoid it: 1. After watching videos, I intentionally pause to reflect on the content or write my thoughts in the comments section. 2. I strictly control my children's screen time; the TV and iPad at home have been put away. 3. I control my sugar intake, as excessive sugar consumption can also affect the brain. However, I think the problem of video addiction among the elderly is more worthy of attention than that of Generation Z. They have nothing to do and can spend all their time watching screens except when sleeping, thus accelerating brain decline.