Watching bad videos often is likely to make memory decline. Usually, moderate viewing of pornographic videos will not affect the memory function of the brain, but if excessive viewing or a sense of dependence on pornography, it is likely to make the central nervous system in a long-term state of excitement, leading to dullness, physical fatigue and other adverse symptoms, and in serious cases may cause insomnia, which leads to inattention and memory loss and other adverse reactions. In addition, the majority of people who watch pornographic videos have the habit of masturbating, and excessive masturbation will not only cause a significant decline in memory, but may also lead to more serious consequences for men such as impotence and premature ejaculation.