Smiling is one of the cheapest and easiest ways to boost your health. It's a lot more than simply letting the world know you're happy. So if you're looking for a reason to smile, here it is. Check out the list below:

1. It lowers your heart rate.

2. It reduces stress.

3. Smiling will improve your mood.

4. It will also increase productivity.

5. It will encourage trust.

6. It can produce empathy.

7. And you can avoid regret.

8. Smiling also helps reduce pain.

9. And it increases attention.

10. What's more, smiling is contagious.

11. It builds attraction.

12. People who smile more are more confident and can even attract success.

13. You'll look a lot younger too.

14. People who smile often live longer too, around 7 years longer than most according to one study.

15. Smiling will also boost your immune system.

16. It releases endorphins, which are the same chemicals that you get from working out.

17. You'll also be a whole lot more approachable.