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Spit: Everything You Never Wanted To Know

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 Biology   |   Health   |   Science
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Warning: May contain the “m-word”…
Tweet this video ⇒ http://bit.ly/OKTBSspit Share on FB ⇒ http://bit.ly/OKTBSspitFB
↓ More info and sources below ↓

Get yourself an awesome IOTBS shirt! http://dftba.com/besmart

References/further reading:

“Gulp” by Mary Roach: A great read about the odd science of the digestive system
http://amzn.to/1U4i2N7 (Public library: http://www.worldcat.org/oclc/811599508)

Carpenter, Guy H. "The secretion, components, and properties of saliva."Annual review of food science and technology 4 (2013): 267-276.

Perry, George H., et al. "Diet and the evolution of human amylase gene copy number variation." Nature genetics 39.10 (2007): 1256-1260.

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It’s Okay To Be Smart is written and hosted by Joe Hanson, Ph.D.
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Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios

Music via APM
Stock images from SciencePhoto http://www.sciencephoto.com/ and Shutterstock http://www.shutterstock.com
Stock footage from Videoblocks (unless otherwise noted) http://www.videoblocks.com

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