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Why Does Hair Grow The Way It Does?

Season 5 Episode 15 | 4m 18s

All mammals have hair at some point in their lives, but none of them wear it quite like humans. Why does our hair grow where it does, and not grow where it doesn’t? How does our hair get its color? And why does it go gray and often fall out when we get older and go bald? Learn all about the science of human hair in this week’s video!

Aired: 05/01/17
Extras
It's the finale and two rounds of cooking remain before one of the finalists gets named the winner.
O imagines that he can go see all types of fairytale bathrooms!
Sienna goes to a festival with her family and learns to use the potty at a public event!
Daniel learns all about how he can use the bathroom at the train station.
A song about how if you need to go potty someplace new, you can use a different bathroom.
Jodi is at the neighborhood concert and learns how she can use an outdoor bathroom there!
In week five, the home cooks have to make a dish from a family tradition and an heirloom recipe.
Alphy and Geordie clash over how to approach a murder case.
Mrs. C. and Jack prepare for a visit from Daniel’s parents. Meanwhile, Alphy confides in Geordie.
The home cooks step outside their comfort zones in two rounds of cooking.
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