Why Do We Have Different Hair Types?

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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Why Does My Voice Sound Like This?

We explore how the structure of our vocal tract produces sound and why humans speak.

Can We Change Our Body Type?

We walk through the types of muscles and hormones that transform the body.

Can Humans Change Their Sleep Cycle?

Dr. Tina Lasisi walks us through the peaks and valleys of our circadian rhythm.

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