Why do you get a fever when you're sick? - Christian Moro

1,261,797 views ใƒป 2020-11-12

TED-Ed


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

๋ฒˆ์—ญ: ๊ฒ€ํ† : DK Kim
00:06
In 1917, doctors proposed an outlandish treatment for syphilis,
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1917๋…„์— ์˜์‚ฌ๋“ค์€ ๋งค๋…์— ์ด์ƒํ•œ ์น˜๋ฃŒ๋ฒ•์„ ๋„์ž…ํ–ˆ์Šต๋‹ˆ๋‹ค.
00:12
the incurable bacterial infection that had ravaged Europe for centuries.
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๋งค๋…์€ ์œ ๋Ÿฝ์„ ๋ช‡๋ฐฑ ๋…„ ๋™์•ˆ ๊ดด๋กญํžŒ ๋ถˆ์น˜์˜ ์„ธ๊ท  ๊ฐ์—ผ๋ณ‘์ž…๋‹ˆ๋‹ค.
์ฒซ ๋‹จ๊ณ„๋Š” ๋งค๋… ๋ง๊ธฐ๋กœ ๊ณ ์ƒํ•˜๋Š” ํ™˜์ž์—๊ฒŒ
00:17
Step 1: Infect patients suffering from the later stages of syphilis
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00:22
with the parasite that causes malaria,
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๋ง๋ผ๋ฆฌ์•„๋ฅผ ์ผ์œผํ‚ค๋Š” ๊ธฐ์ƒ์ถฉ์„ ๊ฐ์—ผ์‹œํ‚ต๋‹ˆ๋‹ค.
00:24
the deadly but curable mosquito-borne disease.
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๋ง๋ผ๋ฆฌ์•„๋Š” ๋ชจ๊ธฐ๊ฐ€ ํผ๋œจ๋ฆฌ๋Š” ๋ณ‘์œผ๋กœ ์น˜๋ช…์ ์ด์ง€๋งŒ ์น˜๋ฃŒํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
00:28
Step 2: Hope that malarial fevers clear the syphilis.
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๋‘ ๋ฒˆ์งธ ๋‹จ๊ณ„๋กœ ๋ง๋ผ๋ฆฌ์•„ ์—ด์ด ๋งค๋…์„ ์น˜๋ฃŒํ•ด ์ฃผ๊ธธ ๋ฐ”๋ž๋‹ˆ๋‹ค.
00:33
And step 3: Administer quinine to curb the malaria.
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์„ธ ๋ฒˆ์งธ๋กœ ๋ง๋ผ๋ฆฌ์•„ ์น˜๋ฃŒ์ œ์ธ ํ€ด๋‹Œ์„ ์ฒ˜๋ฐฉํ•ฉ๋‹ˆ๋‹ค.
00:38
If all went according to plan,
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๊ณ„ํš๋Œ€๋กœ๋งŒ ๋œ๋‹ค๋ฉด
00:40
their patient would be left alive and free of both diseases.
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ํ™˜์ž๋Š” ์งˆ๋ณ‘ ๋‘ ๊ฐ€์ง€๋ฅผ ๋‹ค ์ด๊ฒจ๋‚ด๊ณ  ์‚ด ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
00:44
This killed some 15% of patients, but for those who survived,
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์ด ๋ฐฉ์‹์„ ์“ด ํ™˜์ž์˜ ์•ฝ 15%๋Š” ์‚ฌ๋งํ–ˆ์ง€๋งŒ
์‚ด์•„๋‚จ์€ ํ™˜์ž๋“คํ•œํ…Œ๋Š” ํšจ๊ณผ๊ฐ€ ์žˆ๋Š” ๊ฒƒ์ฒ˜๋Ÿผ ๋ณด์˜€์–ด์š”.
00:49
it seemed to work.
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00:51
It actually became the standard treatment for syphilis
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์ด ๋ฐฉ์‹์€ ๋งค๋… ์น˜๋ฃŒ์˜ ๊ธฐ์ค€์œผ๋กœ์„œ
00:54
until penicillin was widely used decades later.
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๋ช‡์‹ญ ๋…„ ํ›„์— ํŽ˜๋‹ˆ์‹ค๋ฆฐ์ด ๋„๋ฆฌ ์ด์šฉ๋  ๋•Œ๊นŒ์ง€ ์“ฐ์˜€์Šต๋‹ˆ๋‹ค.
00:57
And its driving force was fever.
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์ด ๋ฐฉ์‹์˜ ํ•ต์‹ฌ์€ ์—ด์ด์—ˆ์Šต๋‹ˆ๋‹ค.
01:01
There are many mysteries around fever,
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์—ด์— ๋Œ€ํ•œ ์‹ ๋น„๋Š” ๋งŽ์ง€๋งŒ
01:03
but what we do know is that all mammals,
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๋ชจ๋“  ํฌ์œ ๋™๋ฌผ๋“ค๊ณผ ์กฐ๋ฅ˜ ๋ช‡ ์ข…,
01:06
some birds and even a few invertebrate and plant species feel feverโ€™s heat.
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๋ช‡ ์ข…๋ฅ˜์˜ ๋ฌด์ฒ™์ถ” ๋™๋ฌผ๊ณผ ์‹๋ฌผ ์ผ๋ถ€๋„ ์—ด์„ ๋Š๋‚€๋‹ค๋Š” ๊ฑธ ์•Œ๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค.
01:12
It has persisted for over 600 million years of evolution.
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์•ฝ 6์–ต ๋…„์˜ ์ง„ํ™”๊ฐ€ ์ผ์–ด๋‚˜๋Š” ๋™์•ˆ ๊ณ„์† ์œ ์ง€๋˜๊ณ  ์žˆ๋˜ ์ผ์ด์ฃ .
01:16
But it has a significant cost.
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ํ•˜์ง€๋งŒ ๋Œ€๋‹จํ•œ ๋‹จ์ ์ด ์žˆ์Šต๋‹ˆ๋‹ค.
01:18
For every 1 degree Celsius of temperature increase in the human body,
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์ฒด์˜จ์ด ์„ญ์”จ 1๋„ ์˜ค๋ฅด๋ฉด
01:23
thereโ€™s a 12.5 percent increase in energy required,
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์• ๋„ˆ์ง€๊ฐ€ 12.5% ๋” ํ•„์š”ํ•ฉ๋‹ˆ๋‹ค.
01:27
the equivalent of about 20 minutes of jogging for some.
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๊ฑฐ์˜ 20๋ถ„ ๋™์•ˆ ๋‹ฌ๋ฆฌ๊ธฐ๋ฅผ ํ•˜๋Š” ๊ฒƒ๊ณผ ๊ฐ™์Šต๋‹ˆ๋‹ค.
01:32
So, why and how does your body produce a fever?
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๊ทธ๋Ÿฌ๋ฉด ์—ฌ๋Ÿฌ๋ถ„์˜ ์‹ ์ฒด๋Š” ์™œ, ๊ทธ๋ฆฌ๊ณ  ์–ด๋–ป๊ฒŒ ์—ด์„ ๋‚ผ๊นŒ์š”?
01:36
Your core temperature is maintained via thermoregulation,
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์‹ฌ๋ถ€ ์ฒด์˜จ์€ ์ฒด์˜จ ์กฐ์ ˆ๋กœ ์œ ์ง€ํ•ฉ๋‹ˆ๋‹ค.
01:40
a set of processes that usually keep you around 37 degrees Celsius.
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์ด ๊ณผ์ •์€ ์ฒด์˜จ์„ ์•ฝ ์„ญ์”จ 37๋„๋กœ ์œ ์ง€ํ•ฉ๋‹ˆ๋‹ค.
01:46
These mechanisms are controlled by the brainโ€™s hypothalamus,
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๋‡Œ ์‹œ์ƒ ํ•˜๋ถ€๊ฐ€ ์ด ๊ธฐ๋Šฅ์„ ๊ด€์žฅํ•ฉ๋‹ˆ๋‹ค.
01:49
which detects minute temperature shifts
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๋ฏธ์„ธํ•œ ์˜จ๋„ ๋ณ€ํ™”๋ฅผ ๊ฐ์ง€ํ•˜๋ฉด
01:52
and sends signals throughout the body accordingly.
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๊ทธ์— ๋”ฐ๋ผ ์˜จ๋ชธ์— ์‹ ํ˜ธ๋ฅผ ๋ณด๋‚ด์ฃ .
01:55
If youโ€™re too hot, the hypothalamus produces signals
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๋ชธ์ด ๋„ˆ๋ฌด ๋œจ๊ฑฐ์šฐ๋ฉด ์‹œ์ƒ ํ•˜๋ถ€๊ฐ€ ์‹ ํ˜ธ๋ฅผ ๋ณด๋‚ด์„œ
01:58
that activate your sweat glands or make your blood vessels dilate,
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๋•€์ƒ˜์„ ํ™œ์„ฑํ™”ํ•˜๊ฑฐ๋‚˜ ํ˜ˆ๊ด€์„ ์ด์™„์‹œํ‚ค๊ณ 
02:03
moving blood closer to the skinโ€™s surfaceโ€”
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ํ˜ˆ์•ก์ด ํ”ผ๋ถ€ ํ‘œ๋ฉด์— ๋” ๊ฐ€๊นŒ์ด ํ๋ฅด๋„๋ก ํ•ด์„œ
02:06
all of which releases heat and cools you off.
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์—ด์„ ๋‚ด๋ณด๋‚ด๊ณ  ์ฒด์˜จ์„ ๋‚ด๋ฆฌ์ฃ .
02:10
And if youโ€™re too cold,
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๋งŒ์•ฝ ๋ชธ์ด ๋„ˆ๋ฌด ์ฐจ๋‹ค๋ฉด,
02:11
your blood vessels will constrict and you may start to shiver,
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ํ˜ˆ๊ด€์ด ์ˆ˜์ถ•ํ•˜๊ณ  ๋ชธ์ด ๋–จ๋ฆฌ๊ธฐ ์‹œ์ž‘ํ•ฉ๋‹ˆ๋‹ค.
02:15
which generates heat.
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์—ด์„ ๋งŒ๋“ค์–ด ๋‚ด๋Š” ๊ฑฐ์ฃ .
02:17
Your body will disrupt its usual temperature equilibrium to induce a fever,
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์—ด์„ ๋‚ด๋ ค๋ฉด ๋ชธ์ด ํ‰์†Œ์˜ ์˜จ๋„ ํ‰ํ˜•์—์„œ ๋ฒ—์–ด๋‚˜์•ผ ํ•ฉ๋‹ˆ๋‹ค.
02:22
which sets in above 38 degrees Celsius.
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์„ญ์”จ 38๋„ ์ด์ƒ์œผ๋กœ ์˜ค๋ฅด๋Š” ๊ฑฐ์ฃ .
02:26
Meanwhile, it has mechanisms in place to prevent it
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ํ•œํŽธ์œผ๋กœ ๋˜ ๋‹ค๋ฅธ ๊ธฐ์ „์ด ์žˆ์–ด์„œ
์žฅ๊ธฐ์— ๋ฌธ์ œ๋ฅผ ์ผ์œผ์–ด๋‚  ์ˆ˜ ์žˆ๋Š” ์„ญ์”จ 41๋„๋ฅผ ๋„˜์ง€ ์•Š๊ฒŒ ํ•ฉ๋‹ˆ๋‹ค.
02:29
from exceeding 41 degrees Celsius, when organ damage could occur.
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02:34
Immune cells that are fighting an infection can induce a fever
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์—ผ์ฆ๊ณผ ์‹ธ์šฐ๋Š” ๋ฉด์—ญ ์„ธํฌ๋„ ์—ด์ด ์˜ค๋ฅด๊ฒŒ ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
02:38
by triggering a biochemical cascade that ultimately instructs
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์ƒํ™”ํ•™์ ์ธ ๋ฐ˜์‘์„ ์ผ์œผ์ผœ์„œ
์‹œ์ƒ ํ•˜๋ถ€์— ๊ธฐ์ค€ ์˜จ๋„๋ฅผ ๋†’์ด๋ผ๊ณ  ํ•˜๋Š” ๊ฑฐ์ฃ .
02:42
your hypothalamus to increase your baseline temperature.
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02:46
Your body then gets to work to meet its new โ€œset pointโ€ using the mechanisms
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๊ทธ๋Ÿผ ๋ชธ์€ ๋ณ€๊ฒฝ๋œ ๊ธฐ์ค€ ์˜จ๋„์— ๋งž์ถ”๋„๋ก
์ถ”์šธ ๋•Œ ์ฒด์˜จ์„ ์˜ฌ๋ฆฌ๋Š” ๊ณผ์ •์„ ๋”ฐ๋ฆ…๋‹ˆ๋‹ค.
02:51
it would to generate heat when cold.
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02:54
Until it reaches this new temperature, youโ€™ll feel comparatively cool,
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์ƒˆ ๊ธฐ์ค€ ์˜จ๋„์— ์ด๋ฅผ ๋•Œ๊นŒ์ง€๋Š” ์ถฅ๋‹ค๋Š” ๋Š๋‚Œ์ด ๋“ค ์ˆ˜ ์žˆ์–ด์š”.
02:58
which is why you might experience chills.
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์—ฌ๋Ÿฌ๋ถ„์ด ์˜คํ•œ์„ ๋Š๋ผ๋Š” ์ด์œ ์ฃ .
ํ•˜์ง€๋งŒ ์šฐ๋ฆฌ ๋ชธ์€ ์™œ ์ด๋Ÿด๊นŒ์š”?
03:02
But why does your body do this?
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๊ณ ์—ด์ด ๋ณ‘์›์ฒด์— ์–ด๋–ป๊ฒŒ ์˜ํ–ฅ์„ ๋ฏธ์น˜๋Š”์ง€ ์•„์ง ๋ชจ๋ฅด์ง€๋งŒ
03:04
While the jury's still out on how higher temperatures directly affect pathogens,
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์—ด์˜ ๊ฐ€์žฅ ํฐ ํšจ๊ณผ๋Š”
03:09
it seems that fever's main effect
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03:11
is in rapidly inducing a whole-body immune response.
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๊ธ‰์†ํ•œ ์ „์‹  ๋ฉด์—ญ ๋ฐ˜์‘์„ ์ดˆ๋ž˜ํ•œ๋‹ค๋Š” ๊ฒƒ์ด์—์š”.
03:16
Upon exposure to raised internal temperatures,
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์ฒด์˜จ์ด ์˜ค๋ฅด๋ฉด
์ผ๋ถ€ ์„ธํฌ๊ฐ€ ์—ด์ถฉ๊ฒฉ๋‹จ๋ฐฑ์งˆ, HSP๋ฅผ ์ƒ์„ฑํ•ฉ๋‹ˆ๋‹ค.
03:20
some of your cells release heat shock proteins, or HSPs,
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03:25
a family of molecules produced in response to stressful conditions.
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์ด๋Š” ์ŠคํŠธ๋ ˆ์Šค์— ๋ฐ˜์‘ํ•ด์„œ ๋งŒ๋“ค์–ด์ง€๋Š” ๋ถ„์ž์˜ ์ผ์ข…์ž…๋‹ˆ๋‹ค.
03:30
These proteins aid lymphocytes, one of several kinds of white blood cells
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์ด ๋‹จ๋ฐฑ์งˆ์€ ๋ณ‘์›์ฒด์™€ ์‹ธ์šฐ๋Š”
๋ฐฑํ˜ˆ๊ตฌ๋“ค ์ค‘ ํ•˜๋‚˜์ธ ๋ฆผํ”„๊ตฌ๊ฐ€
03:36
that fight pathogens, to travel more rapidly to infection sites.
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์—ผ์ฆ์ด ์žˆ๋Š” ๊ณณ์œผ๋กœ ๋” ๋นจ๋ฆฌ ๊ฐˆ ์ˆ˜ ์žˆ๋„๋ก ๋•์Šต๋‹ˆ๋‹ค.
03:41
HSPs do this by enhancing the โ€œstickinessโ€ of lymphocytes,
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์—ด์ถฉ๊ฒฉ๋‹จ๋ฐฑ์งˆ์€ ๋ฆผํ”„๊ตฌ๊ฐ€ ๋” ์ž˜ ๋‹ฌ๋ผ๋ถ™๊ฒŒ ํ•˜๊ณ 
03:45
enabling them to adhere to and squeeze through blood vessel walls
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ํ˜ˆ๊ด€ ๋ฒฝ์— ๋ถ™์–ด์„œ ๋ฒฝ ์‚ฌ์ด๋กœ ๋” ์ž˜ ๋น ์ ธ๋‚˜๊ฐˆ ์ˆ˜ ์žˆ๊ฒŒ ๋งŒ๋“ค์–ด์„œ
03:50
so they can reach the areas where infection is raging.
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์—ผ์ฆ์ด ์ผ์–ด๋‚˜๋Š” ๊ณณ์œผ๋กœ ์ด๋™ํ•  ์ˆ˜ ์žˆ๊ฒŒ ํ•ด์ค๋‹ˆ๋‹ค.
03:54
In the case of viral infections,
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๋ฐ”์ด๋Ÿฌ์Šค๋กœ ์ธํ•œ ์—ผ์ฆ์ธ ๊ฒฝ์šฐ์—๋Š”
03:56
HSPs help tell nearby cells to dampen their protein production,
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์—ด์ถฉ๊ฒฉ๋‹จ๋ฐฑ์งˆ์ด ๊ทผ์ฒ˜ ์„ธํฌ๋“ค์˜ ๋‹จ๋ฐฑ์งˆ ์ƒ์„ฑ์„ ์ง€์—ฐ์‹œ์ผœ์„œ
04:01
which limits their ability to replicate.
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๊ทธ๋“ค์˜ ๋ณต์ œ ๋Šฅ๋ ฅ์„ ์ œํ•œํ•ด์š”.
์ด๊ฒƒ์€ ๋ฐ”์ด๋Ÿฌ์Šค์˜ ํ™•์‚ฐ์„ ๋ง‰๋Š”๋ฐ
04:04
This stunts the virusโ€™s spread because they depend on
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๋ฐ”์ด๋Ÿฌ์Šค๋Š” ์ˆ™์ฃผ์˜ ๋ณต์ œ ๋Šฅ๋ ฅ์— ์ด์šฉํ•ด์„œ ํผ์ง€๊ฑฐ๋“ ์š”.
04:07
their hostโ€™s replicative machinery to reproduce.
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04:10
It also protects surrounding cells from damage since some viruses spread
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์—ด์ถฉ๊ฒฉ๋‹จ๋ฐฑ์งˆ์€ ๋˜ํ•œ ์ฃผ๋ณ€ ์„ธํฌ๋“ค๋„ ๋ณดํ˜ธํ•ด์ค๋‹ˆ๋‹ค.
์™œ๋ƒ ํ•˜๋ฉด ์–ด๋–ค ๋ฐ”์ด๋Ÿฌ์Šค๋Š” ์ˆ™์ฃผ๋ฅผ ํŒŒ๊ดดํ•˜๋ฉด์„œ ํผ์ง€๋Š”๋ฐ
04:15
by rupturing their host cells, which can lead to large-scale destruction,
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๋Œ€๊ทœ๋ชจ ํŒŒ๊ดด๋ฅผ ์œ ๋ฐœํ•˜๊ณ 
04:20
the build-up of detritus, and potentially even organ damage.
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์ž”ํ•ด๊ฐ€ ์Œ“์ด๋ฉด ์žฅ๊ธฐ ์†์ƒ๋„ ์œ ๋ฐœํ•  ์ˆ˜ ์žˆ๊ฑฐ๋“ ์š”.
04:24
The ability of HSPs to protect host cells and enhance immune activity
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์—ด์ถฉ๊ฒฉ๋‹จ๋ฐฑ์งˆ์ด ์ˆ™์ฃผ ์„ธํฌ๋ฅผ ์ง€ํ‚ค๊ณ 
๋ฉด์—ญ ํ™œ๋™์„ ์ฆ๊ฐ•์‹œํ‚ค๋Š” ๋Šฅ๋ ฅ์ด
04:30
can limit the pathogenโ€™s path of destruction inside of the body.
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์ธ์ฒด ๋‚ด์—์„œ ๋ณ‘์›์ฒด์˜ ํŒŒ๊ดด ๊ณผ์ •์„ ์ œํ•œํ•ด์š”.
04:34
But for all we know about feverโ€™s role in immune activation,
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ํ•˜์ง€๋งŒ ๋ฉด์—ญ ํ™œ๋™์—์„œ ์—ด์˜ ์—ญํ• ์— ๋Œ€ํ•ด ์šฐ๋ฆฌ๊ฐ€ ์•„๋Š” ๋ชจ๋“  ๊ฒƒ์—๋„ ๋ถˆ๊ตฌํ•˜๊ณ 
04:39
some clinical trials have shown that fever suppressor drugs
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์–ด๋–ค ์ž„์ƒ ์‹คํ—˜์—์„œ๋Š” ํ•ด์—ด์ œ๊ฐ€
04:43
donโ€™t worsen symptoms or recovery rates.
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์ฆ์ƒ์„ ์•…ํ™”์‹œํ‚ค๊ฑฐ๋‚˜ ํšŒ๋ณต์— ์ง€์žฅ์„ ์ฃผ์ง€ ์•Š์•˜์Šต๋‹ˆ๋‹ค.
04:46
This is why thereโ€™s no definitive rule on whether to suppress a fever
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๊ทธ๋ž˜์„œ ์—ด์„ ๋‚ด๋ฆฌ๋ผ๊ฑฐ๋‚˜ ๊ทธ๋ƒฅ ๋†”๋‘๋ผ๋Š” ํ™•์‹คํ•œ ๊ทœ์น™์ด ์—†๋Š” ๊ฒƒ์ž…๋‹ˆ๋‹ค.
04:51
or let it ride.
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04:52
Doctors decide on a case-by-case basis.
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์˜์‚ฌ๋“ค์€ ๊ทธ๋•Œ๊ทธ๋•Œ ํŒ๋‹จ์„ ํ•ด์š”.
04:55
The feverโ€™s duration and intensity, as well as their patientโ€™s immune status,
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์—ด์˜ ์ง€์† ๊ธฐ๊ฐ„๊ณผ ๊ฐ•๋„,
ํ™˜์ž์˜ ๋ฉด์—ญ๋ ฅ, ๋‚˜์ด์™€ ๊ฒฌ๋”œ ์ˆ˜ ์žˆ๋Š” ์ •๋„์— ๋”ฐ๋ผ
05:00
comfort level, and age will all play a role in their choice of treatments.
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์–ด๋–ค ์น˜๋ฃŒ ๋ฐฉ์‹์„ ์“ธ์ง€ ๊ฒฐ์ •ํ•ฉ๋‹ˆ๋‹ค.
05:06
And if they do let a fever ride,
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๋งŒ์•ฝ ์—ด์ด ๋‚˜๋„๋ก ๋‚ด๋ฒ„๋ ค๋‘”๋‹ค๋ฉด,
05:08
theyโ€™ll likely prescribe rest and plenty of fluids to prevent dehydration
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ํœด์‹๊ณผ ์ถฉ๋ถ„ํ•œ ์ˆ˜๋ถ„ ์„ญ์ทจ๋ฅผ ์ฒ˜๋ฐฉํ•ด์„œ
๋ชธ์ด ๋œจ๊ฑฐ์šด ์ „์Ÿ์„ ๋ฒŒ์ด๋Š” ๋™์•ˆ ํƒˆ์ˆ˜๋ฅผ ๋ฐฉ์ง€ํ•  ๊ฒƒ์ž…๋‹ˆ๋‹ค.
05:13
while the body wages its heated battle.
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์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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