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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.
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7:48
We explore how the structure of our vocal tract produces sound and why humans speak.
12:13
We walk through the types of muscles and hormones that transform the body.
8:03
Dr. Tina Lasisi walks us through the peaks and valleys of our circadian rhythm.
10:55
Let's walk through how our immune system evolved and what affects our allergies.
9:31
We explore the evolutionary function of stress.
9:20
In this episode, Dr. Tina Lasisi walks us through how we genetically inherit skin color.
10:38
In this episode, we walk through how our brain develop and process smell.