What causes dandruff, and how do you get rid of it? - Thomas L. Dawson

13,187,730 views ใƒป 2021-02-09

TED-Ed


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

๋ฒˆ์—ญ: Soohyun Park ๊ฒ€ํ† : JY Kang
00:07
Here in this abundant forest,
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์—ฌ๊ธฐ ์ด ์šธ์ฐฝํ•œ ์ˆฒ ์†์—์„œ
00:09
Malassezia is equipped with everything it could ever need.
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๋ง๋ผ์„ธ์ง€์•„ ์ง„๊ท ์€ ํ•„์š”ํ•œ ๋ชจ๋“  ๊ฒƒ์„ ๊ฐ–์ถ”๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค.
00:13
Feasting constantly, itโ€™s in paradise.
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๊ทธ์—๊ฒŒ๋Š” ์ถ•์ œ๊ฐ€ ๊ณ„์†๋˜๋Š” ์ฒœ๊ตญ์ด์ฃ .
00:16
But waitโ€” whatโ€™s this?
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ํ•˜์ง€๋งŒ ์ž ์‹œ๋งŒ์š”. ์ด๊ฒŒ ๋ญ์ฃ ?
00:18
In fact, Malassezia is a type of yeast that lives and dines
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์‚ฌ์‹ค ๋ง๋ผ์„ธ์ง€์•„๋Š” ์šฐ๋ฆฌ์˜ ๋‘ํ”ผ์— ์‚ด๋ฉด์„œ
00:23
on all of our scalps.
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๋งŒ์ฐฌ์„ ์ฆ๊ธฐ๋Š” ํšจ๋ชจ๊ท ์˜ ํ•œ ์ข…๋ฅ˜์ž…๋‹ˆ๋‹ค.
00:26
And in about half of the human population, its activity causes dandruff.
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๊ทธ๋ฆฌ๊ณ  ์ธ๊ตฌ์˜ ์•ฝ ์ ˆ๋ฐ˜ ์ •๋„์—์„œ ์ด๋“ค์˜ ํ™œ๋™์€ ๋น„๋“ฌ์„ ์œ ๋ฐœํ•ฉ๋‹ˆ๋‹ค.
00:31
So, why do some people have more dandruff than others?
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๊ทธ๋ ‡๋‹ค๋ฉด ์™œ ์–ด๋–ค ์‚ฌ๋žŒ๋“ค์€ ๋‹ค๋ฅธ ์‚ฌ๋žŒ๋“ค๋ณด๋‹ค ๋น„๋“ฌ์ด ๋งŽ์€ ๊ฑธ๊นŒ์š”?
00:35
And how can it be treated?
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๋˜ ๊ทธ๊ฒƒ์€ ์–ด๋–ป๊ฒŒ ์น˜๋ฃŒํ•  ์ˆ˜ ์žˆ์„๊นŒ์š”?
00:37
We might consider ourselves individuals, but weโ€™re really colonies.
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์šฐ๋ฆฌ๋Š” ์ž์‹ ์„ ๋…๋ฆฝ๋œ ๊ฐœ์ฒด๋ผ๊ณ  ์ƒ๊ฐํ• ์ง€๋„ ๋ชจ๋ฅด์ง€๋งŒ
์‚ฌ์‹ค ์šฐ๋ฆฌ๋Š” ์‹๋ฏผ์ง€๋‚˜ ๋‹ค๋ฆ„ ์—†์Šต๋‹ˆ๋‹ค.
00:41
Our skin hosts billions of microbes.
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์šฐ๋ฆฌ ํ”ผ๋ถ€๋Š” ์ˆ˜์‹ญ์–ต์˜ ๋ฏธ์ƒ๋ฌผ์—๊ฒŒ ์ง€๋ฐฐ๋‹นํ•˜๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค.
00:45
Malassezia yeasts make themselves at home on our skin shortly after weโ€™re born.
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๋ง๋ผ์„ธ์ง€์•„๋Š” ์šฐ๋ฆฌ๊ฐ€ ํƒœ์–ด๋‚˜์ž๋งˆ์ž
๋งˆ์น˜ ์ž๊ธฐ๋„ค ์ง‘์ธ๋ƒฅ ์šฐ๋ฆฌ ํ”ผ๋ถ€์— ์ž๋ฆฌ๋ฅผ ์žก์Šต๋‹ˆ๋‹ค.
00:51
Follicles, the tiny cavities that grow hairs all over our body,
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์šฐ๋ฆฌ ๋ชธ์˜ ํ„ธ์ด ์ž๋ผ๋Š” ์ž‘์€ ๊ตฌ๋ฉ์ธ ๋ชจ๋‚ญ์€
00:56
make for especially popular living quarters.
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์ธ๊ธฐ๊ฐ€ ๋งŽ์€ ๊ฑฐ์ฃผ ๊ตฌ์—ญ์ด ๋ฉ๋‹ˆ๋‹ค.
00:59
Malassezia are fond of these hideouts because they contain glands
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๋ชจ๋‚ญ์—๋Š” ๋จธ๋ฆฌ์นด๋ฝ์„ ์œค๊ธฐ ๋‚˜๊ณ  ํŠผํŠผํ•˜๊ฒŒ ํ•ด์ฃผ๋Š”
01:03
that secrete an oil called sebum
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ํ”ผ์ง€๋ผ๊ณ  ํ•˜๋Š” ๊ธฐ๋ฆ„์˜ ๋ถ„๋น„์„ ์ด ์žˆ๊ธฐ ๋•Œ๋ฌธ์—
01:06
thatโ€™s thought to lubricate and strengthen our hair.
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๋ง๋ผ์„ธ์ง€์•„๋Š” ์ด ์€์‹ ์ฒ˜๋ฅผ ์ข‹์•„ํ•ฉ๋‹ˆ๋‹ค.
01:09
Malassezia evolved to consume our skinโ€™s proteins and oils.
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๋ง๋ผ์„ธ์ง€์•„๋Š” ์šฐ๋ฆฌ ํ”ผ๋ถ€์˜ ๋‹จ๋ฐฑ์งˆ๊ณผ ์œ ๋ถ„์„ ์†Œ๋น„ํ•˜๋„๋ก ์ง„ํ™”ํ–ˆ์Šต๋‹ˆ๋‹ค.
01:15
And because of its many sebum-secreting follicles,
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๊ทธ๋ฆฌ๊ณ  ํ”ผ์ง€๋ฅผ ๋ถ„๋น„ํ•˜๋Š” ๋งŽ์€ ๋ชจ๋‚ญ๋“ค ๋•Œ๋ฌธ์—
01:18
our scalp is one of the oiliest places on our bodyโ€”
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๋‘ํ”ผ๋Š” ์šฐ๋ฆฌ ๋ชธ์—์„œ ๊ฐ€์žฅ ๊ธฐ๋ฆ„์ง„ ์žฅ์†Œ ์ค‘ ํ•˜๋‚˜์ด๋ฉฐ
01:22
and consequently, one of the yeastiest.
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ํšจ๋ชจ๊ท ์ด ๊ฐ€์žฅ ๋งŽ์€ ์žฅ์†Œ์ด๊ธฐ๋„ ํ•ฉ๋‹ˆ๋‹ค.
01:25
As these fungi feast on our scalpโ€™s oils, dandruff may form.
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์ด๋“ค ๊ท ๋ฅ˜๊ฐ€ ๋‘ํ”ผ์˜ ๊ธฐ๋ฆ„์„ ํฌ์‹ํ•  ๋•Œ ๋น„๋“ฌ์ด ์ƒ์„ฑ๋  ์ˆ˜๋„ ์žˆ์Šต๋‹ˆ๋‹ค.
01:30
This is because sebum is composed of both saturated and unsaturated fatty acids.
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ํ”ผ์ง€๊ฐ€ ํฌํ™”์ง€๋ฐฉ์‚ฐ๊ณผ ๋ถˆํฌํ™”์ง€๋ฐฉ์‚ฐ ๋‘˜ ๋‹ค๋กœ ๊ตฌ์„ฑ๋˜์–ด ์žˆ๊ธฐ ๋•Œ๋ฌธ์ž…๋‹ˆ๋‹ค.
01:36
Saturated fats neatly pack together.
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ํฌํ™”์ง€๋ฐฉ์‚ฐ์€ ๋นˆํ‹ˆ์—†์ด ์Œ“์ž…๋‹ˆ๋‹ค.
01:39
Unsaturated fats, on the other hand,
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ํ•˜์ง€๋งŒ ๋ถˆํฌํ™”์ง€๋ฐฉ์‚ฐ์€
01:41
contain double bonds that create an irregular kink in their structure.
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๊ตฌ์กฐ์ƒ ๊ณ ๋ฅด์ง€ ๋ชปํ•œ ๋’คํ‹€๋ฆผ์„ ์ผ์œผํ‚ค๋Š” ์ด์ค‘ ๊ฒฐํ•ฉ์„ ๊ฐ€์ง€๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค.
01:46
Malassezia eat sebum by secreting an enzyme
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๋ง๋ผ์„ธ์ง€์•„๋Š” ๊ธฐ๋ฆ„์˜ ์ง€๋ฐฉ์‚ฐ์„ ๋ฐฉ์ถœํ•˜๋Š” ํšจ์†Œ๋ฅผ ๋ถ„๋น„ํ•˜์—ฌ ํ”ผ์ง€๋ฅผ ์„ญ์ทจํ•ฉ๋‹ˆ๋‹ค.
01:50
that releases all of the oilโ€™s fatty acids.
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01:53
But they only consume the saturated fats, leaving the unsaturated ones behind.
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ํ•˜์ง€๋งŒ ๊ทธ๋“ค์€ ํฌํ™”์ง€๋ฐฉ์‚ฐ๋งŒ ์†Œ๋น„ํ•˜๊ณ  ๋ถˆํฌํ™”์ง€๋ฐฉ์‚ฐ์€ ๋‚จ๊ฒจ๋‘ก๋‹ˆ๋‹ค.
02:00
These irregularly shaped leftovers soak into the skin
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์ด๋Ÿฌํ•œ ๋ถˆ๊ทœ์น™ํ•œ ๋ชจ์–‘์˜ ์ฐŒ๊บผ๊ธฐ๋“ค์€ ํ”ผ๋ถ€๋กœ ์Šค๋ฉฐ๋“ค๋ฉด์„œ
02:05
and pry its barrier open, allowing water to escape.
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ํ”ผ๋ถ€ ์žฅ๋ฒฝ์„ ์—ด๊ฒŒ ๋˜๊ณ  ๊ทธ์— ๋”ฐ๋ผ ๋ฌผ์ด ๋น ์ ธ๋‚˜์˜ค๊ฒŒ ๋ฉ๋‹ˆ๋‹ค.
02:10
The body detects these breaches and responds defensively,
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๋ชธ์€ ์ด๋Ÿฌํ•œ ์นจ์ž…์„ ๊ฐ์ง€ํ•˜๊ณ  ๋ฐฉ์–ด์ ์œผ๋กœ ๋ฐ˜์‘ํ•˜์—ฌ
02:14
causing the inflammation that gives dandruff itโ€™s itch.
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๋น„๋“ฌ์„ ๊ฐ€๋ ต๊ฒŒ ๋งŒ๋“œ๋Š” ์—ผ์ฆ์„ ์ผ์œผํ‚ต๋‹ˆ๋‹ค.
02:18
It also makes the skin cells proliferate to repair the damaged barrier.
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๋ชธ์€ ๋˜ํ•œ ์†์ƒ๋œ ์žฅ๋ฒฝ์„ ๋ณต๊ตฌํ•˜๊ธฐ ์œ„ํ•ด ํ”ผ๋ถ€ ์„ธํฌ๋ฅผ ์ฆ์‹์‹œํ‚ต๋‹ˆ๋‹ค.
02:24
Usually, our skinโ€™s outer surface, or epidermis,
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์šฐ๋ฆฌ ํ”ผ๋ถ€์˜ ๊ฐ€์žฅ ๋ฐ”๊นฅ ํ‘œ๋ฉด์ธ ํ‘œํ”ผ๋Š”
02:27
completely renews itself every two to three weeks,
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์ผ๋ฐ˜์ ์œผ๋กœ 2, 3์ฃผ๋งˆ๋‹ค ์™„์ „ํžˆ ์ƒˆ๋กœ ๊ต์ฒด๋ฉ๋‹ˆ๋‹ค.
02:31
Epidermal cells divide, move outwards, die,
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ํ‘œํ”ผ ์„ธํฌ๊ฐ€ ๋ถ„์—ดํ•˜๊ณ , ๋ฐ–์œผ๋กœ ๋ฐ€๋ ค๋‚˜๊ณ , ์ฃฝ๊ฒŒ ๋˜๋ฉด
02:34
and form the skinโ€™s tough outer layer,
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ํ”ผ๋ถ€์˜ ํŠผํŠผํ•œ ๋ฐ”๊นฅ์ธต์„ ํ˜•์„ฑํ•˜๋Š”๋ฐ
02:37
which gradually sheds off in single cells far too small to see.
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์ด ๋ฐ”๊นฅ์ธต์€ ๋„ˆ๋ฌด ์ž‘์•„์„œ ๋ณด์ด์ง€ ์•Š๋Š” ๋‹จ์ผ ์„ธํฌ๋กœ ์„œ์„œํžˆ ๋–จ์–ด์ ธ ๋‚˜๊ฐ‘๋‹ˆ๋‹ค.
02:42
But with dandruff, cells churn out quickly to correct the broken barrier,
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ํ•˜์ง€๋งŒ ๋น„๋“ฌ์ด ์žˆ์œผ๋ฉด ๋ฌด๋„ˆ์ง„ ์žฅ๋ฒฝ์„ ๋ฐ”๋กœ์žก๊ธฐ ์œ„ํ•ด
์„ธํฌ๊ฐ€ ๋น ๋ฅด๊ฒŒ ๋Œ€๋Ÿ‰์ƒ์‚ฐ๋˜๋Š”๋ฐ
02:47
meaning they donโ€™t mature and differentiate properly.
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์ด๋Š” ์„ธํฌ๊ฐ€ ์ œ๋Œ€๋กœ ์„ฑ์ˆ™ํ•˜๊ฑฐ๋‚˜ ๋ถ„ํ™”ํ•˜์ง€ ๋ชปํ•œ๋‹ค๋Š” ๋œป์ž…๋‹ˆ๋‹ค.
02:50
Instead, they form large, greasy clumps around the hair follicle
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๋Œ€์‹ ์— ์ด๋“ค์€ ๋ชจ๋‚ญ ์ฃผ๋ณ€์— ํฌ๊ณ  ๊ธฐ๋ฆ„์ง„ ๋ฉ์–ด๋ฆฌ๋ฅผ ํ˜•์„ฑํ•˜๋Š”๋ฐ
02:55
that are shed as visible flakes.
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์ด๊ฒƒ์ด ๋ˆˆ์— ๋ณด์ด๋Š” ์กฐ๊ฐ์˜ ํ˜•ํƒœ๋กœ ๋–จ์–ด์ง‘๋‹ˆ๋‹ค.
02:58
This is how Malasseziaโ€™s voracious appetite
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์ด๊ฒƒ์ด ๋ง๋ผ์„ธ์ง€์•„์˜ ์™•์„ฑํ•œ ์‹์š•๊ณผ
03:01
and our bodies reaction to its by-products lead to dandruff.
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์ด๋กœ ์ธํ•œ ๋ถ€์‚ฐ๋ฌผ์— ๋Œ€ํ•œ ๋ชธ์˜ ๋ฐ˜์‘์ด ๋น„๋“ฌ์„ ์œ ๋ฐœํ•˜๋Š” ์ด์œ ์ž…๋‹ˆ๋‹ค.
03:06
Currently, the most effective way to get rid of dandruff
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ํ˜„์žฌ ๋น„๋“ฌ์„ ์ œ๊ฑฐํ•˜๋Š” ๊ฐ€์žฅ ํšจ๊ณผ์ ์ธ ๋ฐฉ๋ฒ•์€
03:09
is by using antifungals in things like shampoos,
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๋‘ํ”ผ์— ์ง์ ‘ ๋ฐ”๋ฅด๋Š” ์ƒดํ‘ธ ๋“ฑ์— ํฌํ•จ๋œ ํ•ญ์ง„๊ท ์ œ๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ
03:12
applied directly to the scalp, to kill Malassezia.
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๋ง๋ผ์„ธ์ง€์•„๋ฅผ ์ฃฝ์ด๋Š” ๊ฒƒ์ž…๋‹ˆ๋‹ค.
03:16
For those who experience dandruff,
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๋น„๋“ฌ์„ ๊ฒฝํ—˜ํ•˜๋Š” ์‚ฌ๋žŒ๋“ค์€
03:18
it usually comes and goes as sebum secretions vary throughout one's lifetime
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๋Œ€๊ฐœ ์ผ์ƒ์˜ ํ˜ธ๋ฅด๋ชฌ ๋ณ€ํ™”์— ๋”ฐ๋ผ ํ”ผ์ง€์˜ ๋ถ„๋น„ ์ •๋„๊ฐ€ ๋‹ฌ๋ผ์ง€๋ฏ€๋กœ
03:22
due to hormonal changes.
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๋น„๋“ฌ ์—ญ์‹œ ์žˆ๋‹ค๊ฐ€ ์—†๋‹ค๊ฐ€๋ฅผ ๋ฐ˜๋ณตํ•ฉ๋‹ˆ๋‹ค.
03:24
But despite the fact that Malassezia colonize everyone to a similar extent,
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ํ•˜์ง€๋งŒ ๋ง๋ผ์„ธ์ง€์•„๊ฐ€ ๋ชจ๋“  ์‚ฌ๋žŒ๋“ค์—๊ฒŒ ๋น„์Šทํ•œ ์ •๋„๋กœ ์„œ์‹ํ•˜๊ณ  ์žˆ์Œ์—๋„
03:29
not everyone gets dandruff.
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๋ชจ๋‘์—๊ฒŒ ๋น„๋“ฌ์ด ์ƒ๊ธฐ์ง€๋Š” ์•Š์Šต๋‹ˆ๋‹ค.
03:31
Some people are more susceptible.
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์–ด๋–ค ์‚ฌ๋žŒ์€ ๋” ์ทจ์•ฝํ•˜์ฃ .
03:33
Exactly why is unclear.
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์ด์œ ๋Š” ๋ถˆ๋ถ„๋ช…ํ•ฉ๋‹ˆ๋‹ค.
03:35
Do people with dandruff have a certain genetic predisposition?
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๋น„๋“ฌ์ด ์žˆ๋Š” ์‚ฌ๋žŒ์€ ํŠน์ •ํ•œ ์œ ์ „์  ์†Œ์ธ์ด ์žˆ๋Š” ๊ฒƒ์ผ๊นŒ์š”?
03:38
Is their skin barrier more permeable?
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ํ”ผ๋ถ€ ์žฅ๋ฒฝ์˜ ํˆฌ๊ณผ์„ฑ์ด ๋†’์€ ๊ฒƒ์ผ๊นŒ์š”?
03:41
Scientists are currently investigating if people with dandruff do, in fact,
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๊ณผํ•™์ž๋“ค์€ ๋น„๋“ฌ์ด ์žˆ๋Š” ์‚ฌ๋žŒ๋“ค์ด ๋‘ํ”ผ๋ฅผ ํ†ตํ•ด ๋” ๋งŽ์€ ์ˆ˜๋ถ„์„ ์žƒ๋Š”์ง€,
03:45
lose more water through their scalps,
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์ด๊ฒƒ์ด ํ”ผ๋ถ€ ์„ธํฌ๊ฐ€ ์ฆ์‹ํ•˜๋Š” ๊ฒƒ์œผ๋กœ ์ด์–ด์ง€๋Š”์ง€์— ๋Œ€ํ•ด ์กฐ์‚ฌ ์ค‘์ž…๋‹ˆ๋‹ค.
03:47
and whether this is whatโ€™s leading their skin cells to proliferate.
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03:52
Researchers are learning that Malassezia communicate with our immune system
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์—ฐ๊ตฌ์ž๋“ค์€ ๋ง๋ผ์„ธ์ง€์•„๊ฐ€ ์—ผ์ฆ์„ ์กฐ์ ˆํ•˜๋Š” ์ง€์šฉ์„ฑ ๋ถ„์ž์ธ ์˜ฅ์‹œ๋ฆฌํ•€์„ ํ†ตํ•ด
03:56
using small, oily molecules called oxylipins that regulate inflammation.
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์šฐ๋ฆฌ์˜ ๋ฉด์—ญ ์ฒด๊ณ„์™€ ์˜์‚ฌ์†Œํ†ตํ•œ๋‹ค๋Š” ๊ฒƒ์„ ์•Œ์•˜์Šต๋‹ˆ๋‹ค.
04:02
If they can find a way to inhibit inflammatory oxylipins
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๋งŒ์•ฝ ์—ผ์ฆ์„ฑ ์˜ฅ์‹œ๋ฆฌํ•€์„ ์–ต์ œํ•˜๊ณ  ํ•ญ์—ผ ๊ธฐ๋Šฅ์„ ํ™œ์„ฑํ™”์‹œํ‚ฌ ๋ฐฉ๋ฒ•์„ ์ฐพ๋Š”๋‹ค๋ฉด
04:06
and boost anti-inflammatory ones, they could develop new treatments.
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์ƒˆ๋กœ์šด ์น˜๋ฃŒ๋ฒ•์„ ๊ฐœ๋ฐœํ•  ์ˆ˜๋„ ์žˆ์„ ๊ฒ๋‹ˆ๋‹ค.
04:11
Scientists are also investigating if thereโ€™s any benefit to our relationship
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๊ณผํ•™์ž๋“ค์€ ๋˜ํ•œ
์šฐ๋ฆฌ ๋ชธ๊ณผ ๋ง๋ผ์„ธ์ง€์•„์˜ ๊ด€๊ณ„์— ์–ด๋–ค ์ด์ ์ด ์กด์žฌํ•˜๋Š”์ง€ ์กฐ์‚ฌ ์ค‘์ž…๋‹ˆ๋‹ค.
04:16
with Malassezia.
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04:17
They hypothesize that dandruff,
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๊ณผํ•™์ž๋“ค์€ ๋น„๋ก ๋น„๋“ฌ์ด ์šฐ๋ฆฌ์—๊ฒŒ๋Š” ๋ถˆํŽธํ•˜๊ณ  ๋‹นํ™ฉ์Šค๋Ÿฌ์šธ์ง€๋ผ๋„
04:19
which can be uncomfortable and embarrassing for us,
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04:22
creates a reliable, oily food source for the yeast.
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ํšจ๋ชจ๊ท ์—๊ฒŒ ์•Œ๋งž๋Š” ๊ธฐ๋ฆ„์ง„ ์‹๋Ÿ‰์›์„ ๋งŒ๋“ ๋‹ค๊ณ  ์ถ”์ธกํ•ฉ๋‹ˆ๋‹ค.
04:26
But dandruff isnโ€™t contagious or a great threat to our health.
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ํ•˜์ง€๋งŒ ๋น„๋“ฌ์€ ์ „์—ผ๋˜๋Š” ๊ฒƒ์ด ์•„๋‹ˆ๋ฉฐ ๊ฑด๊ฐ•์— ํฐ ์œ„ํ˜‘์ด ๋˜์ง€๋„ ์•Š์Šต๋‹ˆ๋‹ค.
04:29
And Malassezia seem to excel at defending their territory, our skin,
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๊ทธ๋ฆฌ๊ณ  ๋ง๋ผ์„ธ์ง€์•„๋Š” ๊ทธ๋“ค์˜ ์˜์—ญ์ธ ์šฐ๋ฆฌ ํ”ผ๋ถ€๋ฅผ
04:34
from other, more harmful microbes like Staphylococcus aureus.
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ํ™ฉ์ƒ‰ํฌ๋„์ƒ๊ตฌ๊ท ์ฒ˜๋Ÿผ ์œ„ํ—˜ํ•œ ๋ฏธ์ƒ๋ฌผ๋กœ๋ถ€ํ„ฐ ์ง€ํ‚ค๋Š” ๋ฐ ๋›ฐ์–ด๋‚˜ ๋ณด์ž…๋‹ˆ๋‹ค.
04:40
So, while scientists have gotten to the bottom of many mysteries
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๋”ฐ๋ผ์„œ ๊ณผํ•™์ž๋“ค์ด ์ด ์ƒํƒœ๋ฅผ ๋‘˜๋Ÿฌ์‹ผ ๋งŽ์€ ๋ฏธ์Šคํ„ฐ๋ฆฌ์˜ ์ง„์ƒ์„ ๋ฐํ˜€๋ƒˆ์ง€๋งŒ
04:43
surrounding this condition, it must be said:
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๋น„๋“ฌ์€ ์—ฌ์ „ํžˆ ๋จธ๋ฆฌ๋ฅผ ๊ธ์ ์ด๊ฒŒ ํ•˜๋Š” ์กด์žฌ๋ผ๊ณ  ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
04:46
dandruff remains a head-scratcher.
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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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