题目内容：

Findings suggest that playing with smartphones before sleep 1. (be )positively associated  with insomnia(失眠症). Recent 2. (study) show that nearly 24 percent of Chinese people suffer from insomnia and 3.number of young people affected is rising. And more than 60percent of people born after 1990,the group that are most likely 4. (use) their smartphones just before sleep, do not sleep well.

Bedtime mobile phone use is an unhealthy sleep habit because 5.can delay falling asleep and reduce sleep quality. According to the research, nearly three-quarters of the young people fall asleep each night with their phones 6.reach. About 60 percent of them use their smartphones for up to 80 minutes before sleep. And 54.7 percent of the people aged between 18 and 25 go to bed 7. (late) than 12 am.

Good sleep is helpful in protecting the brain’s neurons(神经元)and lack of sleep for long periods can 8. (danger) health. Therefore, all people, including the young, 9. (advise) to avoid using electronic devices one hour before sleep and go to bed at fixed times. But it is10. (benefit) to sleep if people listen to soft music and read books before going to bed.