“要保持身体健康,就必须有充足的睡眠”,这是美国科学家最近针对全美员工普遍缺少足够的睡眠所提出的忠告。据有关资料统计,美国员工人均每个晚上入睡的时间,比本世纪初减少1.5个小时,“睡眠赤字”已引起美国有关部门的密切关注。 睡眠不只是放松和休息,同时也是身体各组织器官功能生长、更新和各种机能恢复的时候。人体中许多生物化学过程,都是人在熟睡中进行的。人体皮肤细胞的更新,在睡眠中比白天要快一倍,深度睡眠时,人体的激素分泌加快。专家们指出:“睡眠是借助人体内的免疫机制,打退疾病侵入的预防性措施。” 在美国芝加哥大学睡眠实验室里,研究人员把白 “To stay in good health, there must be adequate sleep,” is a U.S. advice recently made by the U.S. scientists about the general lack of adequate sleep in the country. According to statistics, the average time a U.S. worker goes to sleep every night is 1.5 hours less than that of the beginning of this century. The “sleep deficit” has drawn the close attention of relevant U.S. departments. Sleep does not just relax and rest, but it is also the time for functional growth, renewal, and functional recovery of various tissues and organs of the body. Many of the biochemical processes in the human body are carried out in human sleep. Renewal of human skin cells, sleep twice as fast in the daytime, deep sleep, the body’s hormone secretion accelerated. Experts point out that “sleep is a preventative measure to fight back a disease by using the immune system in the body.” At the University of Chicago Sleep Laboratory,