Pitching involves mainly the fact of making somebody else contribute to a certain activity, by inviting them to do so.

Studies have shown that individuals tend to feel more involved and, therefore, do more, whenever their contribution is actively requested.

Humor and status have always been tightly linked: good leaders seem to often use humor in order to motivate their team members' actions. As individuals, we tend to prefer, researchers claim, jokes that make us laugh while feeling slightly uncomfortable.

Furthermore, we perceive the joke te...

People become unhappy if they have too many options in life.

You want to feel like you have researched and considered all your options. Find great comfort in routine.

The happiness formula:

1. Eat right