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Most of the time, you probably sit down to use your brain,
在很多時候，你大概都是坐著去思考問題，
but ironically, lengthy periods of sitting actually run counter to this goal.
但是諷刺的是，長時間的坐著卻讓你和你的初衷背道而馳。
Being stationary reduces blood flow and the amount of oxygen entering your blood stream through your lungs.
坐著不動使血液流動放緩，使通過肺部進入血液中的氧氣減少。
Your brain requires both of those things to remain alert,
你的大腦需要所有這些東西去保持靈敏，隨著你的大腦活動減慢，
so your concentration levels will most likely dip as your brain activity slows.
你的注意力集中程度有很大的可能性會降低。
Unfortunately, the ill effects of being seated don't only exist in the short term.
不幸的是，這種不良影響在短期內并不會發生。
Recent studies have found that sitting for long periods is linked with some types of cancers and heart disease
近期研究發現，長期坐著與某些癌癥和心臟病存在特殊的聯系，
and can contribute to diabetes, kidney and liver problems.
并且可能促成糖尿病，引起腎臟和肝臟的病變。
In fact, researchers have worked out that, worldwide, inactivity causes about 9% of premature deaths a year. That's over 5 million people.
事實上，研究者已經發現，每年世界上過早死亡的案例中，不活動占據了9%的死因，總數超過5百萬人。
So what seems like such a harmless habit actually has the power to change our health.
這個看起來并沒有多大害處的習慣，實際上卻有影響我們健康的能力。
But luckily, the solutions to this mounting threat are simple and intuitive.
幸好，解決這個威脅的方法非常簡單。
When you have no choice but to sit,
當你只能坐著的時候，
try switching the slouch for a straighter spine, and when you don't have to be bound to your seat,
試著去抬頭挺胸，當你不需要被綁在座椅上時就更不用說了，
aim to move around much more, perhaps by setting a reminder to yourself to get up every half hour.
試著去到處走走活動活動。或者你可以給自己設一個提示，每隔半個小時起來一下。
But mostly, just appreciate that bodies are built for motion, not for stillness.
更多的時候，我們要感激人類的身體是為運動而生，而不是寂靜。
In fact, since the video's almost over, why not stand up and stretch right now?
其實，這個視頻也快到尾聲了，為什么不趁現在起來走走？
Treat your body to a walk. It'll thank you later.
把走一走當作對你身體的小獎賞，它會在日后感謝你的。
