Surprisingly Little Evidence for the Accepted Wisdom About Teeth
The following originally appeared on The Upshot (copyright 2016, The New York Times Company). I brush my teeth twice a day, but not for as long as
The following originally appeared on The Upshot (copyright 2016, The New York Times Company). I brush my teeth twice a day, but not for as long as

This post is part of a series in which I’m dedicating a month to learning about twelve new things this year. The full schedule can