How daylight saving time affects our bodies, minds -- and world | Sleeping with Science

Transcriber: TED Translators Admin Reviewer:

Did you know that there is a global experiment performed

Translator: C Leung Reviewer: Aubrey Cheng

你知唔知，有一個全球性嘅實驗，

on approximately 1.6 billion people

對象有大約十六億人，

across 75 countries twice a year?

嚟自七十五個國家， 而且一年進行兩次？

It’s called daylight saving time.

呢個實驗叫做日光節約時間。

[Sleeping with Science]

[從科學講睡眠]

The sleep-associated consequences are more significant than you may realize.

佢同睡眠相關嘅後果， 比你所諗嘅仲要大。

For example in the spring,

譬如，喺春天，

when we lose one hour of sleep,

我哋少咗一個鐘訓覺。

there is a subsequent 24 percent relative increase in heart attacks.

後續心臟病發作嘅機率 就會相對增加 24%。

In contrast, in the fall --

反而喺秋天，

in the autumn,

when we gain an hour of sleep,

我哋多咗一個鐘訓覺，

there is a 21 percent reduction in heart attacks.

心臟病發作嘅機率就降低 21%。

Isn’t that incredible?

係咪好不可思議？

And I should also note

我仲應該提提，

that we see similar changes in things such as road traffic accidents,

類似嘅改變 亦出現喺譬如交通事故、

strokes

中風，

and, tragically, suicide rates as well.

仲有好不幸，自殺率上面。

In fact, even the economy suffers

事實上，連經濟都受影響，

with certain stock market returns taking a downswing

某啲股票市場回報會突然下跌，

following the shift to daylight saving time

係緊接轉換到日光節約時間

and that one hour of lost sleep.

同埋少咗一個鐘睡眠後。

This is how fragile our brains,

我哋嘅大腦、身體，

our bodies

and even our societies are

甚至社會，都係咁脆弱，

when it comes to sleep loss.

會受到訓少咗嘅影響。

But said more positively,

但從正面嘅角度睇，

even just small increases in sleep

只要稍為增加少少睡眠，

can have immediate as well as long-term health benefits.

就可以產生 即時同長期嘅健康益處。

So rather than thinking of sleep as a cost,

所以，唔好將睡眠諗做成本，

we can instead think of sleep

我哋可以換個方式，

as one of the very best investments we can make.

將佢諗成我哋可以做嘅最佳投資。