Name: Why do we get white hair? | #aumsum
Uploaded: 2019-04-11T05:56:38.000Z
Duration: 1 min 30 s
Description: Thousands of YouTube videos with English-Chinese subtitles! Now you can learn to understand native speakers, expand your vocabulary, and improve your pronunciation...

Our hair is basically made up of keratin,
a colorless protein.

Hence, before our hair comes out of the skin, it is almost white.

A hair follicle contains melanocytes which produce melanin.

Melanin is injected in the keratin cells during the growth of our hair.

Now, the color of our hair is dependent on
the type of melanin injected.

Eumelanin makes our hair black or brown while pheomelanin makes our hair red or blond.

However, as we grow old, the melanocytes decrease the production of melanin.

Thus, less melanin is injected in hair, causing them to eventually turn white.

Subtitles ListPlay Video

Why do we get white hair? | #aumsum

eventually

basically

protein

cause