How much sleep do you really need? | Sleeping with Science, a TED series

599,664 views ใƒป 2020-09-02

TED


์•„๋ž˜ ์˜๋ฌธ์ž๋ง‰์„ ๋”๋ธ”ํด๋ฆญํ•˜์‹œ๋ฉด ์˜์ƒ์ด ์žฌ์ƒ๋ฉ๋‹ˆ๋‹ค.

00:00
Transcriber: TED Translators admin Reviewer: Krystian Aparta
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00:00
So far, we've spoken about
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๋ฒˆ์—ญ: TED Translators Admin ๊ฒ€ํ† : JY Kang
์ง€๊ธˆ๊นŒ์ง€ ์šฐ๋ฆฌ๋Š”
00:01
all of the wonderful benefits that sleep provides,
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์ˆ˜๋ฉด์˜ ์žฅ์ ์— ๋Œ€ํ•ด ์ด์•ผ๊ธฐํ–ˆ์Šต๋‹ˆ๋‹ค.
00:05
but how much sleep should we actually be getting?
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๊ทธ๋ ‡๋‹ค๋ฉด ์‹ค์ œ๋กœ ์–ผ๋งˆ๋‚˜ ์ˆ˜๋ฉด์„ ์ทจํ•ด์•ผ ๋ ๊นŒ์š”?
00:09
[Sleeping with Science]
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[๊ณผํ•™์ ์œผ๋กœ ์ˆ˜๋ฉดํ•˜๊ธฐ]
00:11
(Music)
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(์Œ์•…)
00:13
For the average adult, the current recommendation
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ํ‰๊ท  ์„ฑ์ธ์˜ ๊ฒฝ์šฐ์— ๊ถŒ์žฅ๋˜๋Š” ์ˆ˜๋ฉด ์‹œ๊ฐ„์€
00:16
is somewhere between seven to nine hours of sleep a night.
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7์‹œ๊ฐ„์—์„œ 9์‹œ๊ฐ„ ์ž…๋‹ˆ๋‹ค.
00:20
And what we've been finding from large-scale epidemiological studies
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์šฐ๋ฆฌ๋Š” ๋Œ€๊ทœ๋ชจ์˜ ์—ญํ•™ ์—ฐ๊ตฌ๋ฅผ ํ†ตํ•ด์„œ
00:24
is that, using that reference point of seven to nine hours,
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7์‹œ๊ฐ„์—์„œ 9์‹œ๊ฐ„์˜ ๊ถŒ์žฅ ์ˆ˜๋ฉด ์‹œ๊ฐ„๋ณด๋‹ค
00:28
once you start to drop below that,
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์ ๊ฒŒ ์ˆ˜๋ฉด์„ ์ทจํ•  ๊ฒฝ์šฐ
00:30
your mortality risk actually starts to increase.
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์‚ฌ๋ง๋ฅ ์ด ๋†’์•„์ง„๋‹ค๋Š” ๊ฒƒ์„ ์•Œ์•„๋ƒˆ์Šต๋‹ˆ๋‹ค.
00:34
In fact, the Center for Disease Control in the United States, or the CDC,
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์‹ค์ œ๋กœ ๋ฏธ๊ตญ ์งˆ๋ณ‘ ํ†ต์ œ์„ผํ„ฐ CDC๋Š”
00:39
they stipulate a minimum of seven hours of sleep a night
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์„ฑ์ธ์ด ํ•˜๋ฃจ ํ‰๊ท  7์‹œ๊ฐ„ ์ด์ƒ ์ˆ˜๋ฉด์„ ์ทจํ•ด์•ผ ํ•œ๋‹ค๊ณ  ๊ทœ์ •ํ•ฉ๋‹ˆ๋‹ค.
00:43
for the average adult.
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00:44
In other words, the shorter your sleep,
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์ฆ‰, ์ˆ˜๋ฉด์‹œ๊ฐ„์ด ์งง์„์ˆ˜๋ก
00:47
the shorter your life.
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์—ฌ๋Ÿฌ๋ถ„์˜ ์ˆ˜๋ช…์ด ์ค„์–ด๋“ ๋‹ค๋Š” ๋œป์ด์ฃ .
00:48
But it turns out that it's not quite a linear relationship as you would expect.
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ํ•˜์ง€๋งŒ ๊ทธ๊ฑด ์—ฌ๋Ÿฌ๋ถ„ ์ƒ๊ฐ์ฒ˜๋Ÿผ ๊ทธ๋ ‡๊ฒŒ ์ผ๋ฅ ์ ์ด์ง€ ์•Š์Šต๋‹ˆ๋‹ค.
00:54
It's not as though the more and more that you sleep,
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์ฆ‰, ๋” ๋งŽ์€ ์ž ์„ ์ž”๋‹ค๊ณ  ํ•ด์„œ
00:57
the lower and lower your mortality risk is.
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์‚ฌ๋ง๋ฅ ์ด ๋” ๋‚ฎ์•„์ง€๋Š” ๊ฒƒ์€ ์•„๋‹ˆ์ฃ .
01:01
In fact, something strange happens.
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์‚ฌ์‹ค์€, ์ด์ƒํ•œ ์ผ์ด ์ผ์–ด๋‚ฉ๋‹ˆ๋‹ค.
01:03
Once you get past nine hours,
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์ˆ˜๋ฉด์‹œ๊ฐ„์ด 9์‹œ๊ฐ„์„ ๋„˜์œผ๋ฉด
01:06
you actually start to see a rise back up in mortality risk,
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์˜คํžˆ๋ ค ์‚ฌ๋ง๋ฅ ์ด ๋‹ค์‹œ ๋†’์•„์ง‘๋‹ˆ๋‹ค.
01:11
which seems rather strange and peculiar.
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์ •๋ง ์ด์ƒํ•˜๊ณ  ๊ธฐ์ดํ•œ ํ˜„์ƒ์ด์ฃ .
01:13
And scientists have actually put forward at least two different explanations.
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์ด์— ๋Œ€ํ•ด ๊ณผํ•™์ž๋“ค์€ ์ตœ์†Œ ๋‘ ๊ฐ€์ง€๋กœ ์„ค๋ช…ํ•˜๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค.
01:18
The first is that, if you look at those studies,
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๊ทธ์ค‘ ์ฒซ ๋ฒˆ์งธ๋Š”, ์—ฌ๋Ÿฌ ์—ฐ๊ตฌ๋ฅผ ํ†ตํ•ด ์‚ดํŽด๋ณผ ๋•Œ,
01:22
it may be that individuals are suffering from significant disease and illness.
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๊ฐœ์ธ์ด ์–ด๋–ค ์งˆ๋ณ‘์„ ์•“๊ณ  ์žˆ์œผ๋ฉด ๊ทธ๋Ÿด ์ˆ˜ ์žˆ๋‹ค๋Š” ๊ฒƒ์ž…๋‹ˆ๋‹ค.
01:28
When we become infected, or we have disease,
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์šฐ๋ฆฌ๊ฐ€ ๊ฐ๊ธฐ๋ฅผ ์•“๊ฑฐ๋‚˜ ๋ณ‘์— ๊ฑธ๋ฆฌ๋ฉด
01:32
typically, we try to sleep longer, we stay in bed longer.
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์ผ๋ฐ˜์ ์œผ๋กœ ์ž ์„ ๋” ์ž๊ณ , ์นจ๋Œ€์— ๋” ์˜ค๋ž˜ ๋จธ๋ฌผ๋ ค๊ณ  ํ•˜์ฃ .
01:35
So in other words,
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๋‹ค์‹œ ๋งํ•˜์ž๋ฉด,
01:36
it was the unmeasured disease and sickness in those studies
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์—ฐ๊ตฌ์—์„œ ๊ณ ๋ คํ•˜์ง€ ์•Š์€ ๋ณ‘์ด๋‚˜ ์งˆํ™˜์ด
01:41
that was triggering a response in those individuals
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์ž ์„ ๋” ์˜ค๋ž˜ ์ž๋„๋ก ๋งŒ๋“  ์š”์ธ์ด ๋œ ๊ฒƒ์ž…๋‹ˆ๋‹ค.
01:45
to try and sleep more.
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01:46
That's one explanation.
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์ด๊ฒƒ์ด ์ฒซ ๋ฒˆ์งธ ์„ค๋ช…์ž…๋‹ˆ๋‹ค.
01:48
The second possible explanation is poor sleep quality,
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๋‘ ๋ฒˆ์งธ ์„ค๋ช…์€ ์ˆ˜๋ฉด์˜ ์งˆ์ด ๋‚˜์˜๋‹ค๋Š” ๊ฒƒ์ž…๋‹ˆ๋‹ค.
01:52
because we know that sleep quality,
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์šฐ๋ฆฌ๋Š” ์ž ์ž๋Š” ์‹œ๊ฐ„์˜ ์–‘๊ณผ ๋ณ„๊ฐœ๋กœ
01:54
independent of sleep quantity,
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์ž ์˜ ์งˆ ๋˜ํ•œ
01:58
is also associated with mortality risk.
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์‚ฌ๋ง๋ฅ ๊ณผ ๊ด€๋ จ์ด ์žˆ๋‹ค๋Š” ๊ฑธ ์•Œ๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค.
02:01
And the lower that your quality of sleep is,
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๊ทธ๋ฆฌ๊ณ  ์ž ์˜ ์งˆ์ด ์ข‹์ง€ ์•Š์„์ˆ˜๋ก
02:04
the higher your risk of death.
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์‚ฌ๋ง๋ฅ ์ด ์ฆ๊ฐ€ํ•˜์ฃ .
02:06
People who have poor quality of sleep will typically try to sleep longer;
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์ž ์„ ์ž˜ ์ž์ง€ ๋ชปํ•˜๋Š” ์‚ฌ๋žŒ๋“ค์€ ์ผ๋ฐ˜์ ์œผ๋กœ ๋” ์ž๋ ค๊ณ  ํ•  ๊ฒ๋‹ˆ๋‹ค.
02:11
they'll try to stay in bed longer to overcome that poor quality of sleep.
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์ฆ‰, ์ž ์˜ ์งˆ์ด ๋‚˜์œ ๊ฑธ ๋ณด์ƒํ•˜๊ธฐ ์œ„ํ•ด ์นจ๋Œ€์— ๋” ์˜ค๋žœ ์‹œ๊ฐ„์„ ๋ณด๋‚ด๋ ค ํ•˜๊ฒ ์ฃ .
02:17
It may be poor quality of sleep masquerading as long sleep
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๋”ฐ๋ผ์„œ ์งˆ ๋‚˜์œ ์ˆ˜๋ฉด์„ ์˜ค๋ž˜ ์œ ์ง€ํ•˜๋Š” ๊ฒƒ์ด ์˜คํžˆ๋ ค
02:22
that is associated with a higher risk of death,
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๋” ๋†’์€ ์‚ฌ๋ง๋ฅ ๋กœ ์ด์–ด์ง€๋Š” ๊ฒƒ์ž…๋‹ˆ๋‹ค.
02:25
rather than the long sleep itself.
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๋‹จ์ง€ ๋” ์˜ค๋ž˜ ์ž๋Š” ๊ฒƒ ๋•Œ๋ฌธ์ด ์•„๋‹ˆ๊ณ  ๋ง์ด์ฃ .
02:28
But if we take a step back and think about society overall,
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ํ•˜์ง€๋งŒ ํ•œ ๋ฐœ ๋–จ์–ด์ ธ์„œ ์‚ฌํšŒ ์ „๋ฐ˜์ ์ธ ๋ถ€๋ถ„์„ ๋ณด๋ฉด
02:33
I think modernity is constantly pushing us
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ํ˜„๋Œ€ ์‚ฌํšŒ๋Š” ์šฐ๋ฆฌ๋ฅผ ๋ชฐ์•„๋ถ™์—ฌ์„œ
02:36
to, perhaps, work long hours and therefore neglect our sleep.
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๋” ์˜ค๋žœ ์‹œ๊ฐ„์„ ์ผํ•˜๊ณ  ์ž ์„ ์†Œํ™€ํžˆ ํ•˜๋„๋ก ๋งŒ๋“ญ๋‹ˆ๋‹ค.
02:42
But if we want to be around long enough to get the benefits
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๊ทธ๋Ÿฌ๋‚˜ ๊ณ ๋œ ๋…ธ๋™์„ ํ†ตํ•œ ํ˜œํƒ๊ณผ ๊ทธ ๊ฒฐ์‹ค์„
02:46
and the fruits of all of that hard labor,
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์˜ค๋žซ๋™์•ˆ ์ฆ๊ธธ ์ˆ˜ ์žˆ์œผ๋ ค๋ฉด,
02:49
we may want to think about starting to prioritize our sleep some more.
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์ž ์„ ์šฐ์„ ์‹œํ•˜๋„๋ก ์ƒ๊ฐ์„ ๋ฐ”๊ฟ€ ํ•„์š”๊ฐ€ ์žˆ์Šต๋‹ˆ๋‹ค.
์ด ์›น์‚ฌ์ดํŠธ ์ •๋ณด

์ด ์‚ฌ์ดํŠธ๋Š” ์˜์–ด ํ•™์Šต์— ์œ ์šฉํ•œ YouTube ๋™์˜์ƒ์„ ์†Œ๊ฐœํ•ฉ๋‹ˆ๋‹ค. ์ „ ์„ธ๊ณ„ ์ตœ๊ณ ์˜ ์„ ์ƒ๋‹˜๋“ค์ด ๊ฐ€๋ฅด์น˜๋Š” ์˜์–ด ์ˆ˜์—…์„ ๋ณด๊ฒŒ ๋  ๊ฒƒ์ž…๋‹ˆ๋‹ค. ๊ฐ ๋™์˜์ƒ ํŽ˜์ด์ง€์— ํ‘œ์‹œ๋˜๋Š” ์˜์–ด ์ž๋ง‰์„ ๋”๋ธ” ํด๋ฆญํ•˜๋ฉด ๊ทธ๊ณณ์—์„œ ๋™์˜์ƒ์ด ์žฌ์ƒ๋ฉ๋‹ˆ๋‹ค. ๋น„๋””์˜ค ์žฌ์ƒ์— ๋งž์ถฐ ์ž๋ง‰์ด ์Šคํฌ๋กค๋ฉ๋‹ˆ๋‹ค. ์˜๊ฒฌ์ด๋‚˜ ์š”์ฒญ์ด ์žˆ๋Š” ๊ฒฝ์šฐ ์ด ๋ฌธ์˜ ์–‘์‹์„ ์‚ฌ์šฉํ•˜์—ฌ ๋ฌธ์˜ํ•˜์‹ญ์‹œ์˜ค.

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