Frown lines got you frowning even more? If you’ve ever thought, “I need a little something right there” when you’ve studied your face in the mirror, but you don’t know exactly what the “something” ...

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, the ...