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.
Similar Shows
![Before Stage Four: Confronting Early Psychosis: show-poster2x3](/sites/default/files/styles/230x346/public/pbs_media_manager_images/2024/04/16/252858-0qQGx3Z-show-poster2x3-PpI16TB.jpg?itok=drX6yqSp)
Before Stage Four: Confronting Early Psychosis
Science and Nature
![The Brain Revolution: show-poster2x3](/sites/default/files/styles/230x346/public/pbs_media_manager_images/2023/05/11/15040-pco7xXl-show-poster2x3-gB223or.jpg?itok=0Atj740b)
The Brain Revolution
Science and Nature
![Paleo Sleuths: show-poster2x3](/sites/default/files/styles/230x346/public/pbs_media_manager_images/2024/04/16/253561-IqlGaUm-show-poster2x3-7fJVGqM.jpg?itok=XKos_MYU)
Paleo Sleuths
Science and Nature
![Ireland's Wild Coast: show-poster2x3](/sites/default/files/styles/230x346/public/pbs_media_manager_images/2024/04/17/4622-H6zvNuv-show-poster2x3-9UINGTm.jpg?itok=gutP00ut)
Ireland's Wild Coast
Science and Nature
![View Finders: show-poster2x3](/sites/default/files/styles/230x346/public/pbs_media_manager_images/2024/04/24/301943-252hvlv-show-poster2x3-XZ6cvUJ.jpg?itok=Rz2RPlTi)
View Finders
Science and Nature
![Nature: show-poster2x3](/sites/default/files/styles/230x346/public/pbs_media_manager_images/2024/06/07/2678-AHPdzGz39tKOQyqVp6WQg.jpg?itok=dd4_HOe3)
Nature
Science and Nature
![Searching: Our Quest for Meaning in the Age of Science: show-poster2x3](/sites/default/files/styles/230x346/public/pbs_media_manager_images/2024/04/16/247118-n0HIRjo-show-poster2x3-jW5Zdz3.jpg?itok=NXxrRRkh)
Searching: Our Quest for Meaning in the Age of Science
Science and Nature
![The Gene Doctors: show-poster2x3](/sites/default/files/styles/230x346/public/pbs_media_manager_images/2024/01/04/3442-jEnTtu5-show-poster2x3-4TOApSa.jpg?itok=Opeq_i8t)
The Gene Doctors
Science and Nature
![Concussion: Answers in the Blood?: show-poster2x3](/sites/default/files/styles/230x346/public/pbs_media_manager_images/2024/04/16/264656-2mxx7p1-show-poster2x3-OgYZBZL.jpg?itok=VkM4HNsi)
Concussion: Answers in the Blood?
Science and Nature
![Human: The World Within: show-poster2x3](/sites/default/files/styles/230x346/public/pbs_media_manager_images/2024/04/17/142998-OG6dGWs-show-poster2x3-FNWhAwC.jpg?itok=XHF1C_Wa)
Human: The World Within
Science and Nature
WETA Passport
Stream tens of thousands of hours of your PBS and local favorites with WETA Passport whenever and wherever you want. Catch up on a single episode or binge-watch full seasons before they air on TV.