睡眠不足少年睡眠时间每日至少应是9小时。造成睡眠不足大致有两个原因:一是家长望子成龙心切,让孩子参加各式各样的课外辅导班和学习班,侵占了孩子的正常休息时间和睡眠时间;二是少年迷恋电子游戏机和电视。俗话说:“爱睡的孩子长得快。”因为人体的生长取决于脑垂体前叶分泌 Insufficient sleep sleep should be at least 9 hours daily. There are two main causes of lack of sleep: First, the parents are eager to help children participate in a variety of extracurricular remedial classes and study classes, which invade children’s normal rest time and sleep time; Second, teenagers obsessed with video games and television . As the saying goes: “The child who sleeps grows faster.” Because the growth of the human body depends on the secretion of the anterior pituitary gland