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What Causes Hair to Turn Gray?

210,871 views

Today I Found Out

Video Language:

  • English

Caption Language:

  • {{captionLanguage | language_name}} ({{captionLanguage}})

Accent:

  • English (US)

Speech Time:

97%
  • 8:30 / 8:41

Speech Rate:

  • 177 wpm - Fast

Category:

  • Education

Tags :

Intro:

Video Vocabulary

melanocytes

/ˈmeləˌnōsīt/

noun other

mature melanin-forming cell. .

process

/ˈpräˌses/

noun verb

Set of changes that occur slowly and naturally. To convert by putting something through a machine.

responsible

/rəˈspänsəb(ə)l/

adjective

having obligation to do something, or having control over or care for someone, as part.

appears

/əˈpir/

verb

To be seen, become visible; come into sight.

probably

/ˈpräbəblē/

adverb

That is likely to happen or be true.

production

/prəˈdəkSH(ə)n/

noun

Process of making a movie or TV show.

produced
verb

To manufacture something using machines.

through

/THro͞o/

adjective adverb preposition

continuing or valid to final destination. expressing movement into one side and out of other side of opening etc.. Over, in, across an entire thing or place.

pigment
noun verb

Substance that makes things have a certain color. colour something with or as if with pigment.

melanin

/ˈmelənən/

noun

dark brown to black pigment occurring in hair.

eumelanin
noun

Eumelanin makes mostly dark colors in hair, eyes, and skin..

determine

/dəˈtərmən/

verb

cause to occur in particular way.

appreciating

/əˈprēSHēˌāt/

verb

To rise in value (of property or belongings).

genetic

/jəˈnedik/

adjective

Of, relating to, or controlled by genes.

specific

/spəˈsifik/

adjective noun

clearly defined or identified. medicine or remedy effective in treating particular disease.

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