Study: Americans’ Heads Getting Bigger and Changing Shape

Forensic anthropologists at the University of Tennessee in Knoxville found that white Americans’ heads are starting to change shape in addition to getting bigger and bigger in size during the 20th century.  The researchers studied more than 1,500 skulls that were dated beginning in the 1800′s and going through the 1980′s. They noticed that the skulls became taller, larger and narrower which gave the impression that faces also got longer.



Dr. Richard Jantz told The Huffington Post, “The surprising thing is the skull size increase has not been documented in modern Americans. We might have suspected that that was happening but this documents it. The shape of the skull has also changed rather dramatically. In fact, shape change has been more dramatic than size change.”

Specifically, the study showed that men’s skulls increased by about 200 cubic centimeters, which is about the volume of a tennis ball. Skull height increased by 8 millimeters. Among white women, skull size has grown by 180 cubic centimeters and height has increased by 7 millimeters.

Now that the research team has identified the growth they are now trying to figure out why it happened.

Dr. Lee Meadows-Jantz of the University of Tennessee’s Forensic Anthropology Center issued a statement which said, “The varieties of changes that have swept American life make determining an exact cause an endlessly complicated proposition. It likely results from modified growth patterns because of better nutrition, lower infant and maternal mortality, less physical work, and a breakdown of former ethnic barriers to marriage. Which of these is paramount we do not know.”

The researchers also said obesity could be playing a role in the skull size increase. Dr. Richard Jantz told The Huffington Post, “Increased calories, nutritional adequacy and decreased activity have probably been important factors. We know that changes how the body works.”


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Posted: at 2-06-2012 01:29 AM (11 years ago) | Upcoming

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Posted: at 2-06-2012 10:26 AM (11 years ago) | Addicted Hero

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Posted: at 2-06-2012 10:31 AM (11 years ago) | Addicted Hero

 

Posted: at 2-06-2012 10:34 AM (11 years ago) | Upcoming

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Posted: at 2-06-2012 11:07 AM (11 years ago) | Addicted Hero

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Posted: at 2-06-2012 11:22 AM (11 years ago) | Addicted Hero

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Posted: at 2-06-2012 11:58 AM (11 years ago) | Upcoming

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Posted: at 2-06-2012 12:04 PM (11 years ago) | Newbie

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Posted: at 2-06-2012 12:25 PM (11 years ago) | Hero

GOD IS MAKING AN IMPORTANT POINT SINCE THEY SAID EVOLUTION TENDS TO PRODUCE PERFECT HUMAN OVER LONG PERIOD OF TIME OR GENETIC SELECTION.THIS GOES TO SHOW THEY HAVE FAILED AND THAT GOD ACTUALLY EXIST OR WHY SHOULD THEIR HEAD START TAKING UGLIER SHAPE.THIS CONTRADICT EVOLUTION.YEYE PEOPLE.

Posted: at 2-06-2012 01:16 PM (11 years ago) | Newbie