Health Advice



Sex Education Equals Declining Teen Pregnancy

Scott LaFee on

This week in 1822, Charles M. Graham of New York was issued the first U.S. patent for artificial teeth. The record and its details were lost in the Patent Office fire of 1836. Also lost was the 1817 patent by William R. Eagleson for setting natural and artificial teeth.

False teeth were not new, with various earlier attempts made to replace rotten teeth and prevent related illnesses. George Washington had at least four sets of false teeth, though none were wooden, despite the myth. His first dentures were made using human teeth set into carved ivory. In 1789, dentist John Greenwood made Washington a complete set from hippopotamus ivory, gold wire springs and brass screws holding human teeth. Washington's single natural remaining tooth was a molar, and Greenwood left a hole in the dentures to accommodate it.

Perishable Publications

Many, if not most, published research papers have titles that defy comprehension. They use specialized jargon, complex words and opaque phrases like "nonlinear dynamics." Sometimes they don't, and yet they're still hard to figure out. Here's an actual title of actual published research study: "Sword swallowing and its side effects."

Published in 2009, researchers offered penetrating, if somewhat obvious, insights into the dangers of sword swallowing, noting that injury risk was heightened when performers were distracted.

Bottom line: Don't turn your head when you have a blade poking down your gullet.


Sum Body

The 10 organs of your digestive system:

No. 1: Mouth

No. 2: Esophagus


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