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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:

Special thanks to The Free Dictionary for providing us with the information used in this web page

Video Vocabulary

melanocytes

/ˈmeləˌnōsīt/

melanocytes
noun other

mature melanin-forming cell. .

process

/ˈpräˌses/

process
noun verb

series of actions towards achieving something. To deal with official forms in the way required.

responsible

/rəˈspänsəb(ə)l/

responsible
adjective

Being the cause of something that has occurred.

appears

/əˈpir/

appears
verb

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

probably

/ˈpräbəblē/

probably
adverb

That is likely to happen or be true.

production

/prəˈdəkSH(ə)n/

production
noun

Process of producing or growing food naturally.

produced
produced
verb

To control the making a movie or television show.

through

/THro͞o/

through
adjective adverb preposition

From one end or side of something to the other. From the beginning of something until the end. By a particular way or process; by the use of.

pigment
pigment
noun verb

natural colouring matter of animal or plant tissue. colour something with or as if with pigment.

melanin

/ˈmelənən/

melanin
noun

dark brown to black pigment occurring in hair.

eumelanin
eumelanin
noun

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

determine

/dəˈtərmən/

determine
verb

To establish the facts about; discover.

appreciating

/əˈprēSHēˌāt/

appreciating
verb

recognize worth of.

genetic

/jəˈnedik/

genetic
adjective

relating to genes or heredity.

specific

/spəˈsifik/

specific
adjective noun

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

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