PDF《2015-2016 学年 初三上 鼓楼区期末统考》

sleep changes, the teachers were asked to take the survey again. Compared with their original scores, those who slept one hour less had worse behavior scores than those who were allowed to sleep an hour more. Students with less sleep were more cranky, frustrated and had more problems paying attention. The children with more sleep showed improvement in these areas. The scientists chose to study kids in their homes instead of inside a lab because they wanted to measure how everyday changes might affect children'

s behavior in the classroom. One more movie or one less game played before bed can change the way children foc........