Let me start by answering your question.

Let me ask you this; the last time you were sad or down about something; did you start whistling?

Well, I'm not a natural singer and I hardly whistle as well, but I sing and whistled best each time I'm down. I don't always know how I started responding in this manner, but each time I sing or whistled, I completely forget about the problems, and I come out strong.

This implies that, faking it until you are making it can really help.... Smile