If you are not one of those people who always wake up in the morning with the mood to hit the gym or you eat a strict diet.

You know you always feel better after working out—and this alone should vanquish any of that couch-laden inertia. But we're ...

such as sticking to an exercise routine. That’s no surprise to researchers, who have found motivational quotes, mantras and positive self-talk help people in myriad ways. College students who ...