Does smiling give you less wrinkles?

Although many people have heard that smiling uses fewer facial muscles than frowning, it is only fairly recently that research has actually proven this to be true. Those who spend more time smiling have been shown to develop fewer facial wrinkles than those who are stressed and frown a lot.

Does smiling make you age?

Smiling Ages You, Says 2017 Study

But researchers were shocked to find that the results were actually the opposite: The smiling faces were, on average, perceived as being around two years older than those same faces in neutral expressions.