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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 act in a play, movie, or be mentioned in media.

probably

/ˈpräbəblē/

adverb

certainly.

production

/prəˈdəkSH(ə)n/

noun

Process of making a movie or TV show.

produced
verb

To grow something naturally.

through

/THro͞o/

adjective adverb preposition

continuing or valid to final destination. expressing movement into one side and out of other side of opening etc.. Allowing you to pass between, or to.

pigment
noun verb

natural colouring matter of animal or plant tissue. 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

recognize worth of.

genetic

/jəˈnedik/

adjective

Of, relating to, or controlled by genes.

specific

/spəˈsifik/

adjective noun

Concerning one particular thing or kind of thing. medicine or remedy effective in treating particular disease.

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