Time for the Shoutout. Which of these has the most influence over your sleep cycle? If you think you know it, shout it out!Is it your respiratory system, circadian rhythm, sebaceous glands or cerebellum? You've got three seconds, go!The circadian rhythm is your 24 hour cycle of human activity, which includes sleeping and waking. That's your answer and that's your shoutout.Of course, we all try to modify and master our circadian rhythm, but researcher say, there is really not much we can do to change it.It's closely tied into the sun. When it's up, our bodies released hormones that make us more awake and alert.When it sets, hormones tell us it's time to start shutting down.The doctors say if you get too far off track from your natural circadian rhythm, it will throw your body out of whack.It can increase your chances of getting sleep disorders, obesity, diabetes.It might even contribute to mental health issues.And as far as your students are concerned,some research has shown that those with unnaturally early start time, so figure those who have to be awake before the sun is up,don't do as well academically as those who start a little later.We love global news, we love global schools. Here, just a few of those watching in this World Wide Wednesday Roll Call.First up, hello to the students of Ibaraki High School. They are watching from Osaka, Japan. Next, we are headed to Linz, Austria.
又到了大喊答题节目环节。下面哪个对睡眠周期影响最大？如果你认为自己知晓答案，那就大声喊出来！是呼吸系统、昼夜节律、皮脂腺还是小脑？你有3秒钟时间，走起！昼夜节律是你一天活动的生理规律，包括睡眠和醒来状态在内。你回答对了吗？这就是本期的大喊答题节目环节。当然，我们大家都试着调整并掌握自己的生物钟，但研究人员表示，我们能改变的并不多。它与太阳有紧密的联系。太阳升起的时候，人类的身体会释放让我们更清醒、更活泼的荷尔蒙。而当太阳落山，荷尔蒙就会发出让我们停下来的信号。医生表示如果你的作息和你的自然生物钟差别太大，会导致身体紊乱。会增加睡眠失调、肥胖及糖尿病的患病几率。这还可能引发心理健康问题。就学生群体而言，一些研究表明比日出时间起床还早的鸟儿们,在学业上比不过那些稍微赖床的人。我们钟爱全球新闻,也爱全球的学校。现在又到了周三全球范围内的名校点名节目环节。首先,茨城高中的学生们，你们好。他们正在日本的大阪收看CNN学生新闻。接下来是奥地利的林茨。
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