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Friday, July 20 • 10:40am - 11:20am
The Incredible Shrinking Face

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Anthropologists have long reported that human craniofacial volumes have been diminishing since the advent of agriculture in the Middle East some 10-12,000 kya. Pre-industrial skeletal specimens reveal that H. sapiens had spent nearly their entire 250+ kya existence with wide palates, nasal cavities and faces. Soft tissues, such as brains and tongues, do not often get preserved within the fossil record, but anthropologists can nonetheless accurately infer brain and tongue volumes from the osseous structures that had been lifelong occupied by each of them. Given that functioning/resting tongues should help develop and occupy the palatal vault in a similar manner as do growing brains develop/occupy the cranial vault, it can also be accurately inferred that AMH’s had lived with well-postured and properly functioning tongues for the hundreds of thousands of years that had preceded the Industrial Revolution, which also implies optimal respiratory competence (i.e., habitual nose-breathing during wakefulness and sleep).

Speakers
avatar for Kevin Boyd

Kevin Boyd

DDS (Pediatric Dentist), MSc (Human Nutrition and Dietetics)
Dr. Kevin Boyd is a board certified Pediatric Dentist in Chicago. He teaches in the Pediatric Dentistry residency program at Lurie Children's Hospital and serves as a dental consultant to their sleep medicine clinic. Dr. Boyd is a visiting scholar at the University of Pennsylvania... Read More →


Friday July 20, 2018 10:40am - 11:20am
Room 233/235