Stephanie Coontz: Social networks are not only a reflection of ourselves, but actually cause changes in ourselves. If i influence you and you happen to know some one else, she says, your politics could go viral. She argues that the easiest, cheapest, most available food is food that really makes you fat fast.coontz: Maybe we're looking at a community effect more than a kind of social behavior effect.
Also: which professions have the happiest people?