来自美国俄亥俄州立大学的Charles P.Pollack在2003年1月的《Pediatrics》上发表文章称:咖啡因能使青少年在早晨保持清醒,但也会影响他们晚间的睡眠质量。 他们调查了200名7-9年级的学生,结果如下:平均咖啡因摄入为63mg,相当于饮用半杯咖啡。57％的学生每天摄入量在0-50mg,但最高值可 Charles P. Pollack from Ohio State University published an article in January 2003, “Pediatrics,” stating that caffeine can keep teens awake in the morning but also affect their nighttime sleep quality. They surveyed 200 students in grades 7-9 with the following results: The average caffeine intake was 63 mg, equivalent to drinking half a cup of coffee. 57% of students daily intake of 0-50mg, but the highest value can be