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Where Does Our Stress Come From?

Where Does Our Stress Come From?

Season 1 Episode 4
9:31
Can Humans Change Their Sleep Cycle?

Can Humans Change Their Sleep Cycle?

Season 1 Episode 6
8:03
Can We Change Our Body Type?

Can We Change Our Body Type?

Season 1 Episode 7
12:13
Why Does My Voice Sound Like This?

Why Does My Voice Sound Like This?

Season 1 Episode 8
7:48
Episode 5: The Calling

The Calling

Season 4 Episode 5
53:05
When Whales Could Walk

When Whales Could Walk

Season 51 Episode 1
53:31
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Why Am I Like This?

Why Do We Have Different Hair Types?

Season 1 Episode 3

Have you ever wondered why your hair grows out of your scalp the way it does? Maybe you've also wondered why our body hair isn't as dense as most other mammals. Dr. Tina Lasisi walks us through why hair varies so much across all humans, how hair is a part of our impressive thermoregulatory system, and the shortcomings of addressing hair variation in scientific literature.