What makes us yawn?
Yawning is a universal human behavior, yet scientists still don't know exactly why we do it or what purpose it serves. Marshall Brain explores some of the theories behind yawning in this episode.
Você Também Pode Gostar

Aha! Zehn Minuten Alltags-Wissen
WELT

Astronomy Cast
Fraser Cain and Dr. Pamela Gay
Discovery
BBC World Service

Intelligent Design the Future
Discovery Institute

Real Ghost Stories Online
Real Ghost Stories Online | Paranormal, Supernatural & Horror Radio

Dr. Chapa’s OBGYN Clinical Pearls
Dr. Chapa’s Clinical Pearls

Vida Eterna. Respuestas desde la Ciencia | Dr. Manuel Sans Segarra
Dr. Manuel Sans Segarra

The Dissenter
Ricardo Lopes

Hidden Brain
Hidden Brain, Shankar Vedantam

Eye On The Sky
Vermont Public
Discussão da comunidade