VIDEO OF THE DAY: Why does hair on our heads grow so long?
If you think about it, why do most animals grow hair only to a certain length? Why do humans have to cut the hair on our heads regularly, but the hair on our arms never grow to the same length? See this video to find out.
Have you ever wondered why the hair on your head can just keep on growing while hair on your legs or arms only grow to a certain length?
Humans are pretty special for a lot of reasons, but one thing that sets us apart that doesn’t get a lot of attention: our hair.
Why does hair grow so long on our heads? Well, there is a how, and then there is a why. Cody Gough from Curiosity.com explains the chemistry and biology behind why our hair grows the way it grows.
See video here:
https://youtu.be/iBhmxVeJZ-I
