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

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

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

Let's walk through how our immune system evolved and what affects our allergies. 

We explore the evolutionary function of stress.

We walk through why hair varies so much across all humans.

In this episode, Dr. Tina Lasisi walks us through how we genetically inherit skin color. 

In this episode, we walk through how our brain develop and process smell.