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Some people are so full of life and energy, but for some reason
even when you seem to get more than enough sleep,
you're still fighting off yawns and fatigue through the day.
So, why are you always tired?
If you know the number of the hours of sleep isn't the problem,
The second most common cause of fatigue
comes from lack of physical activity and a poor diet.
Study after study finds that adults
who began light exercise a few times a week reported more energy after six weeks.
People who exercise more regularly also report sleeping better.
Even though studies show that they aren't sleeping any longer.
But if that doesn't help, don't go straight for your cup of joe
While many studies show that coffee is good for your health
research show that your reliance on it can make you more sleepy.
Caffeine blocks adenosine in your brain
which normally accumulates through the day
and makes you sleepy at night.
But consuming coffee or energy drinks less than 6 hours before bed
can ultimately affect your sleep quality.
As a result people who don't use caffeine
often report feeling less tired in the morning.
You might consider making sure you're fully hydrated with some water first too.
One study found that a drop of 1,5% in our bodies normal water levels
can cause difficulty concentrating.
Your blood thickens which slows down nutrients and oxygen
getting to your muscles and organs.
However a 2% drop is enough to make you feel thirsty
so while there's no need to gulping down gallons of water.
Staying hydrated throughout the day will certainly help.
Urine should be pale yellow
Any darker-it's time for some water.
Those glasses of wine or beers before bed
may also be affecting your day.
Studies have found that after becoming intoxicated
while test subjects would fall asleep faster
their quality of sleep was actually much lower,
particularly during the second half of their night sleep.
Ultimately alcohol reduces the amount of REM sleep you get.
And, if you're binge drinking and sleeping in on the weekends
be aware that a consistent sleep schedule is key.
Try waking up close to your normal time on weekends
and having short 20-minute naps in the day.
These will still recharge your body without going into deep sleep
and making you more tired.
You're also more likely to fall asleep at a correct time on Sunday evening
making Monday morning easier.
Of course your mental well-being plays a role too.
Anxiety is a big one.
Worrying what people think, always feeling tense about work
or being overly concerned about every decision
can be physically exhausting.
And fatigue is one of the main symptoms of generalized anxiety disorder.
Not only that, but anxiety may be affecting your sleep quality on
another serious end, depression can cause physical, and emotional fatigue
which more sleep won't necessarily relieve.
For some it causes insomnia
or inability to fall asleep in the first place.
Unfortunately there's no quick fix
for the 10% of Americans who do suffer from depression.
So if you think you may be depressed
see your physician or psychologist.
Finally, you might also simply be a night owl.
Around 20% of population have genetics
making them predisposed to staying up late.
But living in our nine-to-five world may make it difficult for you
to get the proper amount of sleep.
In fact, scientists call this phenomenon social jet lag.
Well night owls feel like they're living in the wrong time zone every day.
If nothing seems to help, there may be an underlying medical condition
causing your fatigue which should be talked about with your physician.
Got a burning question you wanna answer?
Ask it in the comments or on Facebook and twitter
and subscribe for more weekly science videos.
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總是感覺疲累?科學家跟你解釋原因 (Why Are You Always Tired?)

110099 分類 收藏
韓澐 發佈於 2017 年 8 月 1 日   Hannah Tseng 翻譯   Kiara 審核

影片簡介

為什麼即使花了一整個週末補眠,星期一起床的時候還是超想砸爛鬧鐘?
為什麼上班前喝了咖啡精神還是超不濟?甚至比沒喝咖啡的同事更累?
失眠、疲勞不是沒有原因,今天就來對症下藥!

1a cup of joe0:33
A cup of joe 就是 a cup of coffee 的意思。它的由來有幾種不同的說法,有一說是1914年美國海軍長官 Josephus Daniels 下令海軍禁止攜帶酒精類飲料,所以海軍們就故意把替代的飲品,也就是咖啡,叫做 a cup of joe。另一說是,joe 是 java「爪哇咖啡」跟 mocha「抹茶」的結合。
最常被用的解釋是, joe 指的是「普通人」,而 a cup of joe 就是「給普通人喝的咖啡」。
It is necessary to have a cup of joe on Monday morning.
星期一早上必須來一杯咖啡。
We have been working for 5 hours! Let’s go get a cup of joe!
我們已經工作了五個小時!我們去買杯咖啡吧!


除了 a cup of joe 之外,cup of 還有片語呢?
someone’s cup of tea,意思是「喜好的事/物」。
Thanks for the invatation, but mountain climbing is really not my cup of tea.
謝謝你的邀請,但登山真的不是我的喜好。


in one’s cup,指「某人酒醉」
You were really in your cup when you returned from the party last night!
你昨晚從派對回來後真的很醉!


*同場加映:
【生活英文】為什麼喝咖啡會想大便?你也這樣過嗎? Why Does Coffee Make You Poop?


2accumulate0:43
accumulate 有「累積、增加」的意思,
During her internship, she accumulated a great amout of extensive experience.
在她的實習期間,她累積了大量實務經驗。

James accumulated wealth due to his regular investment.
詹姆士的財產因為他的定期投資而增加。


那除了 accumulate 之外,還有哪些「增加」或「累積」的單字呢?像是 accrue 是「增加、累積」的意思,指數量上成長。
Lily has accrued a month of her sick leave.
麗麗目前已經累積了一個月的病假了。

另外還有 amass ,也有「累積」 的意思,特別指金錢或資訊。
J.K. Rowling has amassed huge fortune from Harry Potter series.
J.K. 羅琳自《哈利波特》系列累積了大量的財富


3gulp down1:14
gulp down 是「暴飲暴食」,gulp 是動詞「吞下、吞嚥」的意思,讓我們來看看除了 gulp down 之外還有形容「暴飲/暴食」
的片語吧!
像是 guzzle down 是「暴飲、狂灌」的意思,
He guzzle down the beer and left the party alone.
他一口灌下啤酒然後獨自離開派對。


to wolf down one's food 形容一個人「狼吞虎嚥」。
Don’t wolf down your hamburger so quickly!
別這樣狼吞虎嚥你的漢堡!


另外,暴飲暴食有時候也是一種飲食失調疾病,例如 binge eating disorder 是狂食症、 Bulimia nervosa 是暴食症。
兩者的差別是,暴食症的患者常常會有催吐的行為,因此有些暴食症患者會比狂食症患者還要瘦!

4insomnia2:25
Insomnia 就是「失眠症」,其中, “somni” 的字根有「睡眠、睡覺」的意思,搭配字尾的 “ia”「疾病」,就是「睡眠的疾病」。而一般較口語的「睡眠不足」則是 sleep deprivation
The survey reported that one in five people suffer from insomnia.
報導指出每五個人中就有一位患有失眠症。


除了insomnia 失眠症外,還有哪些睡眠問題呢?
像是「嗜睡症」 narcolepsy
Since she had narcolepsy, she often fell asleep during class.
她患有嗜睡症,因此時常在課堂上睡著。


另外還有,睡眠呼吸中止症 sleep apnea 也是常見的睡眠疾病,在入睡後因為呼吸道阻塞,導致打斷正常睡眠。
He could not sleep the night through since he suffered from sleep apnea.
他無法一覺到天亮,因為他患有睡眠呼吸中止症。


*同場加映:
【學知識】如果一直都不睡覺,還能活嗎? What If You Stopped Sleeping?


5predisposed to2:41
predisposed to something 是「傾向於某事物」的意思,例如:
Being chased by a dog when she was six predisposed her to fear of animals.
她六歲時被狗追使她傾向於對動物有恐懼。


另外,predisposed to 也有「容易患上某種疾病」的意思,例如:
Scientists pointed out that certain kind of people are genetically predisposed to Alzheimer’s disease.
科學家指出特定族群的基因使他們容易患上阿茲海默症 。


用說的很簡單,規律的睡眠習慣實踐起來真難!
但為了自己的身體健康,還是要注意自己的作息啊(媽媽模式出現)
從今天開始,跟小V一起打敗身體裡面的瞌睡蟲!

文/ Jenny Hsu

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