It may seem like the easiest thing to do, but most of us don't find enough time to do it, or enough reason to show it off. Here are some 19 really good reasons to smile, because, it can actually do you more good than bad.

1. Build trust with a smile.

2. Help your heart.

3. Increase your positivity.

4. Be more youthful.

5. Become popular.

6. It gives you a natural high

7. Pump up your immune system.

8. Increase your productivity.

9. Reduce your pain.

10. Find success, one smile at a time.

11. Smile your way to success

12. Smiling makes you more approachable.

13. Smiling can make you happy (even when you're not).

14. A smile makes you seem more trustworthy.

15. Lower stress and improve your mood.

16. You’ll be remembered

17. Smiling actually retrains your brain for the better.

18. Smiles are contagious.

19. Smiling can make others happy.