1. It makes you attractive.
2. It changes your mood.
3. It is contagious.
4. It relieves stress.
5. It boosts your immune system.
6. It lowers your blood pressure.
7. It releases endorphins, natural pain killers and serotonin - natural antidepressant.
8. It lifts the face and makes you look younger.
9. It makes you seem successful.
10. It helps you stay positive.