Junior doctors and residents in hospitals are tweeting pictures of themselves asleep while at work to highlight how exhausting their long shifts can be.

In honor of National Doctor’s Day, here’s a look at all the ways the job has changed—but mostly stayed the same. Images all courtesy of The Library of Congress. Exams The long wait ...

Doctors are facing challenges that didn't ... In Pictures: Reasons Not To Become A Doctor May 05, 2008, 05 ... There are several reasons doctors are frustrated by the amount of time spent at work.