This is not a hoax.  The biggest offender is probably dental work such as crowns:

http://ift.tt/1o7eGME

from THE WOOD ZONE http://ift.tt/1oiiyMR

http://ift.tt/eA8V8J

This is not a hoax.  The biggest offender is probably dental work such as crowns:

http://ift.tt/1o7eGME

via IFTTT