You’ve probably heard the claim that it takes more muscles to frown than to smile. It’s usually framed as a feel-good reason to turn your frown upside down – less effort, more joy. But anatomically, ...

I have spent an astronomical amount of money on my teeth, which is why I feel like my smile better be worth a million bucks. When offered the chance to work with FlossAndBrush.com, I was thrilled. I ...