We welcome Dr. Michael Grandner back to the show - he's the Director of the Sleep & Health Research Program, and the Behavioral Sleep Medicine Clinic, both at the University of Arizona.

Michael and Neil cover everything from polyphasic sleep to pandemics and everything in between, but much of the conversation revolves around the myriad things that humans have done to screw up sleep for the entire species.

LINKAPALOOZA

Dr. Michael Grandner on Twitter

MichaelGrandner.com

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