73.睡眠时间Sleep time

For your child to grow taller, it is best to catch the golden sleep time by falling asleep already at 20:30 and getting up after 7:00am. Parents are advised to try to do their bedtime before 20:00 to create a sleep-friendly environment for their children.
However, most families today fail to do this, for example by unconsciously neglecting their children's sleep when their schoolwork conflicts with their sleep schedule, watching TV or playing games for their children before bedtime, and so on.
Even some parents themselves do not adopt a strict and regular routine and do not properly develop their children's biological sleep cycles.
Adequate sleep is a lifelong benefit to children, and the amount of sleep required varies between individuals of different ages.
As a general rule, children aged 3-10 should ensure that they get at least 10 hours of sleep a day, and a minimum of 9 hours a day when they reach junior school. Lack of sleep can affect not only growth and development, but can be harmful in many other ways.
译文：
要想孩子长得更高，抓住黄金睡眠时间最好在20:30就已经睡着，并且在早上7：00后起床。建议父母们尽量在20:00前做好睡前工作，给孩子营造一个有利睡眠的环境。
然而，现如今大多数家庭都没能做到这一点，例如当孩子的课业与睡眠时间发生冲突时，会不自觉地忽视孩子的睡眠；睡前给孩子看电视或者玩游戏等等。
甚至，一些父母自身都没有养成严格固定的作息时间，也没有好好培养孩子的生理睡眠周期。
充足的睡眠时间，对孩子终身受益，不同年龄段的个体，所需要的睡眠时间也不同。
通常来说，3-10岁的孩子要保证每天至少有10个小时的睡眠，上到初中后每天起码要睡9个小时。睡眠不足，不仅仅会影响到生长发育，还有很多其他方面的危害。