Many Americans are eating "sad desk lunches" alone, rather than taking an actual break from work or at least socializing with coworkers over lunch. (Photo illustration: Gabriella Turrisi/Yahoo News; ...

When I think of the term “lunch hour,” I picture Jon Hamm as Don Draper in Mad Men, schmoozing with clients over prime rib and several martinis, even though that’s certainly not what my work lunch ...