Do you think getting a good night sleep is tough? Try doing it in outer space.
你觉得晚上睡个好觉很难吗？那你试试在太空睡个觉。
A lot of kids asked like, how do you sleep? Because we go around Earth 16 times a day. And so --
很多孩子会问，你是怎么睡觉的？因为我们每天要绕地球转16次。所以……
You know, what do you wake up?
你知道，醒来会是什么吗？
That`s 16 sunsets.
那可是经历了16次日落
Or get up or get down 16 times? I said, no, no.
那是经历16次起床、睡觉吗？我说，不，不是的。
So, the astronauts go around the earth every 90 minutes, far too fast for the body clock to adopt to, and so, they essentially experience a perpetual jet lag.
所以，宇航员每90分钟绕地球一圈，速度实在太快导致生物钟无法适应。因此，他们本质上是在经历一场无期限的时差反应。
But you don`t have to be an astronaut to throw your biological clock out of sync.
不过，即使不成为一个宇航员，你也可以把生物钟打乱。
Virtually every shift work on Earth experiences the same sleep issues.
事实上，地球上的每一次轮班都经历着同样的睡眠问题。
Just like astronauts, you can take simple steps to improve your sleep. Keep a regular sleep schedule. Block out any light. And avoid screen time before bed. Otherwise, your lack of sleep could catch up to you.
就像宇航员一样，你可以通过采取简单的步骤来改善睡眠质量。保持规律的睡眠时间。遮挡住所有光线，并且要在睡前避免看屏幕。否则，睡眠不足会影响到你的生活。
When you`re in space, the stakes are much higher. So, a missed keystroke can be the difference between, you know, life and death really.
当你身处太空时，风险要高得多。所以，任何一次失误都可能会导致生死之别。

Do you think getting a good night sleep is tough? Try doing it in outer space.
A lot of kids asked like, how do you sleep? Because we go around Earth 16 times a day. And so --
You know, what do you wake up?
That`s 16 sunsets.
Or get up or get down 16 times? I said, no, no.
So, the astronauts go around the earth every 90 minutes, far too fast for the body clock to adopt to, and so, they essentially experience a perpetual jet lag.
But you don`t have to be an astronaut to throw your biological clock out of sync.
Virtually every shift work on Earth experiences the same sleep issues.
Just like astronauts, you can take simple steps to improve your sleep. Keep a regular sleep schedule. Block out any light. And avoid screen time before bed. Otherwise, your lack of sleep could catch up to you.
When you`re in space, the stakes are much higher. So, a missed keystroke can be the difference between, you know, life and death really.