Health

A Nasty Weed May Have Helped Ancient Humans Keep Their Teeth

NPR | July 20, 2014 9:08 a.m.

Contributed By:

Rae Ellen Bichell

Archaeologists have found that for a period of about 7,000 years, people were eating a weed that may have helped them avoid cavities. This story originally aired on All Things Considered on July 16.

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