"Talking about ourselves—whether in a personal conversation or through social media sites like Facebook and Twitter—triggers the same sensation of pleasure in the brain as food or money..."

A new study.

Generally, acts of self disclosure were accompanied by spurts of heightened activity in brain regions belonging to the meso-limbic dopamine system, which is associated with the sense of reward and satisfaction from food, money or sex.

Ah! I thought of a weight-loss epigram: Instead of eating: Tweeting.

I've got another: Don't be a hog: Blog.