Do pets make you happier?

Related questions

1. Does smiling relieve stress?
2. What triggers a smile?
3. How often should you smile?
4. Why is a smile contagious?
5. What do the faces mean on SC?
6. What does it mean when someone smiles a lot?
7. Does smiling give you wrinkles?
8. Is it bad to smile too much?
9. Is always smiling a good thing?
10. Can smiling make you feel happier?

Tags

1. #stroking
2. #watching
3. #calmer
4. #pressure
5. #blood
6. #brain
7. #lower
8. #dopamine
9. #playing
10. #increases
11. #serotonin
12. #muscles
13. #depression
14. #stress
15. #tense
16. #levels
17. #chemicals