It's sort of like the chicken and the egg thing. Which came first? Who the hell knows. The difference between the chicken and the egg thing and the smiling thing is that when you feel good you smile AND when you smile you feel good.
Supposedly smiling lowers your blood pressure and boosts your immune system. Here's another smiling fact that's not so funny:
- The average pre-schooler laughs or smiles 400 times a day. That number drops to only 15 times a day by the time people reach age 35.
Of course, none of this changes the fact that I hate it when people tell me to smile. I'll smile when I'm good and damn ready and, probably, not when you're looking at me you smile demanding asshole.