14. It never hurts to smile. 15. A smile does not cost anything. 16. Smiling can add more years to your life. Keep smiling to live longer. 17. A smile can go a long way. 18. A smile is a sign of ...

According to Dental Associates of Florida, adults smile on average 20 times a day. While we think of a smile as a simple expression, it actually has a profound effect on our health, well-being ...