Skip to main content
Donate

Up Next

Meet a member of NASA's astronaut class of 2017

Meet a member of NASA's astronaut class of 2017

Video
3:26
A look into a Tuvan throat singing ensemble

A look into a Tuvan throat singing ensemble

Video
5:54
Scientific advancement in the use of artificial lungs

Scientific advancement in the use of artificial lungs

Video
5:03

Watching out for wildlife

Video
9:35
In defense of timber rattlesnakes

In defense of timber rattlesnakes

Video
7:23
Learn about the toughest animal on the planet: tardigrades

Learn about the toughest animal on the planet: tardigrades

Video
6:41
Making an impact with STEM

Making an impact with STEM

Video
5:46
A look inside a lab that builds synthetic humans and animals

A look inside a lab that builds synthetic humans and animals

Video
7:23
Saving the American chestnut tree

Saving the American chestnut tree

Video
5:57

Fighting drug-resistant cancers with mathematical modeling

Video
6:39
The genetics behind seahorse pregnancy

The genetics behind seahorse pregnancy

Video
5:17
The scientific side effects of Superstorm Sandy

The scientific side effects of Superstorm Sandy

Video
5:47
Back to Show
SciTech Now

A look at the science behind yawning

To many yawning is simply a reflex that occurs when one is tired or bored. Evolutionary Neuroscientist, Andrew Gallup has been “tirelessly” studying the science behind yawning. He joins Hari Sreenivasan via Google Hangout with his insights.